{"id":2062,"date":"2026-04-02T04:11:06","date_gmt":"2026-04-02T04:11:06","guid":{"rendered":"https:\/\/rumahpintar.co.id\/blog\/?p=2062"},"modified":"2026-04-08T07:16:04","modified_gmt":"2026-04-08T07:16:04","slug":"operasi-aritmetika-pada-bilangan-real","status":"publish","type":"post","link":"https:\/\/rumahpintar.co.id\/blog\/operasi-aritmetika-pada-bilangan-real\/","title":{"rendered":"Kupas Konsep dan Strategi Jawab Soal Operasi Aritmetika pada Bilangan Real TKA Matematika SMP"},"content":{"rendered":"<p class=\"ds-markdown-paragraph\"><strong>Halo, Sahabat <a href=\"http:\/\/rumahpintar.co.id\">Rumah Pintar<\/a>!<\/strong>\u00a0Pernah merasa pusing saat melihat soal matematika yang campur aduk antara tambah, kurang, kali, bagi, pecahan, desimal, diskon bertingkat, sampai suhu negatif? Tenang, kamu tidak sendirian.<\/p>\n<p class=\"ds-markdown-paragraph\">Topik\u00a0<strong>operasi aritmetika pada bilangan real<\/strong>\u00a0memang sering dianggap menakutkan, padahal kalau sudah tahu triknya, rasanya seperti main teka-teki seru. Di artikel ini, kita akan bahas tuntas dari dasar hingga soal cerita ala <a href=\"https:\/\/tka.kemendikdasmen.go.id\/\" target=\"_blank\" rel=\"noopener\">TKA<\/a> (Tes Kemampuan Akademik) SMP, dengan gaya santai ala Rumah Pintar. Siap? Yuk, mulai!<\/p>\n<h2><strong>Kenalan Dulu yuk, <\/strong><strong>Apa Sih Bilangan Real Itu?\u00a0<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Sebelum kita masuk ke operasi hitungnya,\u00a0<strong>Sahabat Rumah Pintar<\/strong>\u00a0harus kenalan dulu sama yang namanya bilangan real. Jangan bayangkan sesuatu yang rumit. Bilangan real itu sebenarnya semua bilangan yang biasa kita temui sehari-hari. Mulai dari uang jajan, nilai ujian, suhu, sampai potongan harga.<\/p>\n<p class=\"ds-markdown-paragraph\">Secara sederhana,\u00a0<strong>operasi aritmetika pada bilangan real<\/strong>\u00a0bekerja pada dua jenis bilangan:<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Bilangan rasional<\/strong>: yang bisa ditulis dalam bentuk pecahan (contoh: 5, -2, \u00bd, 0,75, 20%)<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Bilangan irasional<\/strong>: yang tidak bisa diubah jadi pecahan biasa (contoh: \u221a2, \u03c0, \u221a3)<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong>Tapi tenang, Sahabat Rumah Pintar!<\/strong>\u00a0Di tingkat SMP, kita hanya fokus ke bilangan rasional dulu, yaitu:<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Bilangan bulat (positif, negatif, nol)<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Pecahan biasa dan campuran<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Desimal<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Persen<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\">Jadi, jangan takut dulu sama \u221a2 atau \u03c0. Nanti kalau sudah naik kelas, kita bahas lagi bersama di Rumah Pintar.<\/p>\n<h2><strong>Mengapa Operasi Aritmetika pada Bilangan Real Itu Penting?\u00a0<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Mungkin\u00a0<strong>Sahabat Rumah Pintar<\/strong>\u00a0bertanya, &#8220;Untuk apa sih belajar ini? Apa hubungannya dengan hidupku?&#8221; Nah, ini dia jawabannya. Kemampuan ini akan sangat terasa saat kamu:<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Menghitung diskon belanja (apalagi kalau ada promo &#8220;beli 4 gratis 1 termurah&#8221;)<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Membagi uang saku atau jajan bersama teman<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Menentukan untung rugi jualan<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Membandingkan suhu di kota yang berbeda<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Menyelesaikan soal TKA Matematika SMP dengan cepat dan tepat<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\">Jadi,\u00a0<strong>operasi aritmetika pada bilangan real<\/strong>\u00a0bukan hanya teori, tapi alat bantu hidup sehari-hari. Seru, kan?<\/p>\n<hr \/>\n<h2><strong>Aturan Dasar yang Wajib Sahabat Rumah Pintar Hafal: Urutan Operasi KABATAKU<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Nah, sebelum mulai menghitung,\u00a0<strong>Sahabat Rumah Pintar<\/strong>\u00a0harus hafal dulu urutan operasi. Jangan asal kalkulasi dari kiri ke kanan ya. Ada aturan bernama\u00a0<strong>KABATAKU<\/strong>\u00a0atau\u00a0<strong>PEMDAS<\/strong>. Ini dia urutannya:<\/p>\n<blockquote>\n<p class=\"ds-markdown-paragraph\"><strong>K<\/strong>urung \u2192\u00a0<strong>A<\/strong>kar &amp;\u00a0<strong>B<\/strong>ilangan berpangkat \u2192\u00a0<strong>T<\/strong>kali &amp;\u00a0<strong>B<\/strong>agi \u2192\u00a0<strong>K<\/strong>urang &amp;\u00a0<strong>T<\/strong>ambah<\/p>\n<\/blockquote>\n<p class=\"ds-markdown-paragraph\"><strong>Cerita santainya begini:<\/strong>\u00a0Bayangkan kamu sedang membuat jus buah. Kamu harus kupas dulu (kurung), baru potong (pangkat\/akar), lalu blender (kali\/bagi), terakhir tuang ke gelas (tambah\/kurang). Kalau urutannya salah, jusnya bisa berantakan.<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Contoh biar makin paham:<\/strong><\/p>\n<div class=\"md-code-block md-code-block-light\">\n<div class=\"md-code-block-banner-wrap\">\n<div class=\"md-code-block-banner md-code-block-banner-lite\">\n<div class=\"_121d384\">\n<div class=\"d2a24f03\"><span class=\"d813de27\">text<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<pre>12 + 8 \u00f7 4 \u2212 3 \u00d7 2 = ...<\/pre>\n<\/div>\n<p class=\"ds-markdown-paragraph\">Langkah:<\/p>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\">Bagi dan kali dulu: 8 \u00f7 4 = 2, lalu 3 \u00d7 2 = 6<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Soal jadi: 12 + 2 \u2212 6 = 8<\/p>\n<\/li>\n<\/ol>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar, jangan sampai salah urutan ya!<\/strong>\u00a0Karena kesalahan kecil bisa bikin jawaban meleset jauh.<\/p>\n<hr \/>\n<h2><strong>Sifat-Sifat Ajaib dalam Operasi Aritmetika, Biar Hitungan Lebih Cepat<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, ada tiga &#8220;sifat ajaib&#8221; yang bisa mempermudah hitunganmu. Sifat ini bekerja seperti sulap matematika.<\/p>\n<h3>1. Sifat Komutatif (Tukar-Tukaran Itu Boleh, Asalkan&#8230;)<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Berlaku untuk\u00a0<strong>penjumlahan<\/strong>\u00a0dan\u00a0<strong>perkalian<\/strong>.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Contoh: 5 + 3 = 3 + 5; 4 \u00d7 7 = 7 \u00d7 4<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Tidak berlaku<\/strong>\u00a0untuk pengurangan dan pembagian. (Coba deh 5 \u2212 3 \u2260 3 \u2212 5)<\/p>\n<\/li>\n<\/ul>\n<h3>2. Sifat Asosiatif (Pengelompokan Boleh Diubah)<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Contoh: (2 + 3) + 4 = 2 + (3 + 4)<\/p>\n<\/li>\n<\/ul>\n<h3>3. Sifat Distributif (Paling Sering Dipakai Buat Diskon!)<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Rumus: a \u00d7 (b + c) = a \u00d7 b + a \u00d7 c<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Contoh praktis: 7 \u00d7 98 = 7 \u00d7 (100 \u2212 2) = 700 \u2212 14 = 686. Cepat, kan?<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, sifat distributif ini sangat berguna saat menghitung diskon atau untung rugi. Simpan baik-baik ya.<\/p>\n<hr \/>\n<h2><strong>Operasi Bilangan Negatif (Jangan Sampai Tertukar, Sahabat Rumah Pintar!)<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Ini nih yang sering bikin pusing. Tapi tenang,\u00a0<strong>Sahabat Rumah Pintar<\/strong>. Kita buat dalam tabel sederhana biar mudah diingat.<\/p>\n<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<div class=\"ds-scroll-area__gutters\">\n<div class=\"ds-scroll-area__horizontal-gutter\"><\/div>\n<div class=\"ds-scroll-area__vertical-gutter\"><\/div>\n<\/div>\n<table>\n<thead>\n<tr>\n<th>Operasi<\/th>\n<th>Contoh<\/th>\n<th>Hasil<\/th>\n<th>Cara Santai Mengingat<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Positif + Negatif<\/td>\n<td>5 + (\u22123)<\/td>\n<td>2<\/td>\n<td>Kurangi saja, tandai punya positif<\/td>\n<\/tr>\n<tr>\n<td>Negatif + Negatif<\/td>\n<td>\u22124 + (\u22122)<\/td>\n<td>\u22126<\/td>\n<td>Tambah, tetap negatif<\/td>\n<\/tr>\n<tr>\n<td>Positif \u2013 Negatif<\/td>\n<td>5 \u2212 (\u22123)<\/td>\n<td>8<\/td>\n<td>Min ketemu min jadi plus<\/td>\n<\/tr>\n<tr>\n<td>Negatif \u2013 Positif<\/td>\n<td>\u22125 \u2212 3<\/td>\n<td>\u22128<\/td>\n<td>Tambah, tetap negatif<\/td>\n<\/tr>\n<tr>\n<td>Positif \u00d7 Negatif<\/td>\n<td>4 \u00d7 (\u22122)<\/td>\n<td>\u22128<\/td>\n<td>Positif kali negatif = negatif<\/td>\n<\/tr>\n<tr>\n<td>Negatif \u00d7 Negatif<\/td>\n<td>(\u22124) \u00d7 (\u22122)<\/td>\n<td>8<\/td>\n<td>Negatif kali negatif = positif<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ds-markdown-paragraph\"><strong>Tips dari Rumah Pintar:<\/strong>\u00a0Kalau bingung, ingat saja: &#8220;Dua negatif bertemu jadi positif, tapi hati-hati untuk penjumlahan dan pengurangan ya!&#8221;<\/p>\n<hr \/>\n<h2><strong>Pecahan, Desimal, dan Persen (Teman Sehari-hari Sahabat Rumah Pintar!)<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, di dunia nyata, kita jarang ketemu bilangan bulat terus. Seringnya pecahan, desimal, dan persen. Yuk, kita bahas satu per satu.<\/p>\n<h3>Pecahan<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Penjumlahan\/pengurangan<\/strong>: harus samakan penyebut dulu.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Perkalian<\/strong>: pembilang \u00d7 pembilang, penyebut \u00d7 penyebut.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Pembagian<\/strong>: kalikan dengan kebalikannya.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Contoh: \u00be kg telur harganya 18.000. Harga per kg = 18.000 \u00f7 \u00be = 18.000 \u00d7 4\/3 = 24.000.<\/p>\n<\/li>\n<\/ul>\n<h3>Desimal<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">0,75 = 75\/100 = 3\/4<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">0,2 = 1\/5<\/p>\n<\/li>\n<\/ul>\n<h3>Persen<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Diskon 20% = 20\/100 = 0,2<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Contoh: Diskon 20% dari Rp200.000 = 0,2 \u00d7 200.000 = 40.000<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, sering-sering latihan mengubah bentuk pecahan, desimal, persen. Nanti kalau ketemu soal diskon bertingkat, kamu tidak akan panik.<\/p>\n<hr \/>\n<h2><strong>Strategi Jitu Menyelesaikan Soal Operasi Aritmetika pada Bilangan Real (Rahasia dari Rumah Pintar!)<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Biar\u00a0<strong>Sahabat Rumah Pintar<\/strong>\u00a0makin jago, ini dia langkah-langkah super:<\/p>\n<h3>Langkah Umum<\/h3>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Baca soal dengan teliti<\/strong>\u00a0\u2013 Apa yang diketahui? Apa yang ditanya?<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Tentukan operasi<\/strong>\u00a0yang diperlukan (+, \u2212, \u00d7, \u00f7, KPK, FPB, persen).<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Perhatikan promo atau ketentuan khusus<\/strong>\u00a0(contoh: &#8220;beli 4 gratis 1 termurah&#8221;).<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Kerjakan bertahap<\/strong>\u00a0\u2013 jangan terburu-buru.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Periksa kembali<\/strong>\u00a0\u2013 Apakah jawaban masuk akal?<\/p>\n<\/li>\n<\/ol>\n<h3>Trik Khusus<\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Promo barang termurah<\/strong>: cari harga termurah dulu, baru potong.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Diskon bertingkat<\/strong>: jangan pernah menjumlah persen. Hitung satu per satu.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Estimasi<\/strong>: kalau angka besar, bulatkan dulu biar mudah.<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, trik ini sudah terbukti membantu banyak siswa lolos TKA Matematika SMP. Kamu pasti bisa!<\/p>\n<hr \/>\n<h2><strong>Contoh Soal dan Pembahasan (Langsung Praktek, Sahabat Rumah Pintar!)<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Teori sudah, sekarang saatnya praktek.\u00a0<strong>Sahabat Rumah Pintar<\/strong>, simak baik-baik ya.<\/p>\n<h3>Contoh 1: Promo &#8220;Beli 4 Gratis 1 Termurah&#8221;<\/h3>\n<p class=\"ds-markdown-paragraph\">Ani membeli 2 pulpen (Rp12.000) dan 2 pensil (Rp8.000). Promo: setiap beli 4 barang, potong harga 1 barang termurah. Berapa yang harus dibayar?<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Pembahasan santai:<\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Total barang = 4 \u2192 dapat promo.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Harga total = (2\u00d712.000) + (2\u00d78.000) = 24.000 + 16.000 = 40.000<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Barang termurah = pensil = Rp8.000<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Bayar = 40.000 \u2212 8.000 =\u00a0<strong>Rp32.000<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3>Contoh 2: Diskon Bertingkat (Jangan Pernah Dijumlah!)<\/h3>\n<p class=\"ds-markdown-paragraph\">Harga baju Rp300.000. Diskon 30% + 20%. Berapa harga akhir?<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Pembahasan santai:<\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Diskon pertama: 30% \u00d7 300.000 = 90.000 \u2192 harga jadi 210.000<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Diskon kedua: 20% \u00d7 210.000 = 42.000 \u2192 harga akhir =\u00a0<strong>Rp168.000<\/strong><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Catatan:<\/strong>\u00a0Kalau dijumlah 30+20=50%, hasilnya 150.000. Itu salah besar, Sahabat Rumah Pintar!<\/p>\n<\/li>\n<\/ul>\n<h3>Contoh 3: Operasi Bilangan Negatif<\/h3>\n<p class=\"ds-markdown-paragraph\">Hasil dari 15 \u2212 (\u22127) \u00d7 2 + 12 \u00f7 (\u22124) adalah \u2026<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Pembahasan santai:<\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Perkalian &amp; pembagian didahulukan: (\u22127)\u00d72 = \u221214; 12\u00f7(\u22124) = \u22123<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Soal menjadi: 15 \u2212 (\u221214) + (\u22123) = 15 + 14 \u2212 3 =\u00a0<strong>26<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3>Contoh 4: Pecahan dalam Cerita<\/h3>\n<p class=\"ds-markdown-paragraph\">Ibu membeli 3\/4 kg telur seharga Rp18.000. Berapa harga per kg?<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Pembahasan santai:<\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Harga per kg = 18.000 \u00f7 (3\/4) = 18.000 \u00d7 (4\/3) =\u00a0<strong>Rp24.000<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3>Contoh 5: KPK dalam Masalah Nyata<\/h3>\n<p class=\"ds-markdown-paragraph\">Lampu A menyala setiap 12 detik, lampu B setiap 18 detik. Jika menyala bersama pada detik 0, pada detik ke berapa mereka menyala bersama lagi?<\/p>\n<p class=\"ds-markdown-paragraph\"><strong>Pembahasan santai:<\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Cari KPK dari 12 dan 18 = 36 \u2192\u00a0<strong>detik ke-36<\/strong><\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>Latihan Mandiri untuk Sahabat Rumah Pintar (Jangan Skip Ya!)<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\">Kerjakan soal berikut dengan santai tapi teliti. Jawabannya ada di bawah.<\/p>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"katex\"><span class=\"katex-mathml\">24+6\u00d7(8\u22125)\u221212\u00f73=\u2026<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\">24<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord\">6<\/span><span class=\"mbin\">\u00d7<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">8<\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord\">5<\/span><span class=\"mclose\">)<\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord\">12<\/span><span class=\"mbin\">\u00f7<\/span><\/span><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"minner\">\u2026<\/span><\/span><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Seorang pedagang membeli 5 kg apel seharga Rp120.000. Ia menjual dengan keuntungan 20% per kg. Berapa harga jual per kg?<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Dalam sebuah promo, pembeli mendapat diskon 15% + 5%. Mana yang lebih murah, diskon tersebut atau diskon langsung 20%? Buktikan.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Suhu di dalam kulkas -5\u00b0C. Suhu di luar kulkas 28\u00b0C. Berapa selisih suhunya?<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Andi memiliki 3\/5 bagian kue. Ia memberikan 1\/3 dari bagiannya kepada Budi. Berapa bagian kue yang tersisa pada Andi?<\/p>\n<\/li>\n<\/ol>\n<p class=\"ds-markdown-paragraph\"><strong>Kunci Jawaban:<\/strong><\/p>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\">34<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Rp28.800<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Diskon langsung 20% lebih murah<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">33\u00b0C<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">2\/5 bagian<\/p>\n<\/li>\n<\/ol>\n<hr \/>\n<h2><strong>Terus Semangat, Sahabat Rumah Pintar!<\/strong><\/h2>\n<p class=\"ds-markdown-paragraph\"><strong>Sahabat Rumah Pintar<\/strong>, menguasai\u00a0<strong>operasi aritmetika pada bilangan real<\/strong>\u00a0itu seperti belajar naik sepeda. Awalnya mungkin oleng, tapi setelah terbiasa, kamu akan melaju kencang. Ingat selalu:<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Hafal urutan operasi KABATAKU.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Pahami sifat komutatif, asosiatif, distributif.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Latih soal cerita, terutama promo dan diskon.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Jangan takut sama bilangan negatif. Ingat &#8220;negatif ketemu negatif jadi positif&#8221;.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Selalu periksa ulang jawabanmu.<\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\">Rumah Pintar bangga mendampingi perjalanan belajarmu. Terus berlatih, jangan mudah menyerah. Kalau ada yang bingung, tanyakan langsung ke tutor Rumah Pintar ya. Sampai jumpa di artikel berikutnya.\u00a0<strong>Tetap pintar, tetap santai!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Halo, Sahabat Rumah Pintar!\u00a0Pernah merasa pusing saat melihat soal matematika yang campur aduk antara tambah, kurang, kali, bagi, pecahan, desimal, diskon bertingkat, sampai suhu negatif? Tenang, kamu tidak sendirian. Topik\u00a0operasi aritmetika pada bilangan real\u00a0memang sering dianggap menakutkan, padahal kalau sudah [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2063,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[36],"tags":[205,204,206,207],"class_list":["post-2062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-konsep-dan-pelajaran","tag-bilangan-real","tag-operasi-matematika","tag-soal-tka-smp","tag-tka-matematika-smp"],"_links":{"self":[{"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/posts\/2062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/comments?post=2062"}],"version-history":[{"count":1,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/posts\/2062\/revisions"}],"predecessor-version":[{"id":2064,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/posts\/2062\/revisions\/2064"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/media\/2063"}],"wp:attachment":[{"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/media?parent=2062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/categories?post=2062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rumahpintar.co.id\/blog\/wp-json\/wp\/v2\/tags?post=2062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}