Halaman
1234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789023456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890 1234567890121234567890Pelajaran 9 Melakukan Perkalian69Melakukan PerkalianMengingatKembali FaktaPerkalian sampai5 x 10Melakukan PerkalianBilangan yanghasilnya dua angkaPerkalian Hasilnyasampai 50Perkalian sebagaipenjumlahanberulangPelajaran 9Melakukan PerkalianStandar Kompetensi:Melakukan perkalian bilangan yang hasilnya bilangan dua angkaKata Kunci: perkalian, bilangan, penjumlahanSemester 2Peta Konsep
Matematika kelas 2 SD/MI12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890112345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890170Perkalian merupakan penjumlahan berulang.Melakukan perkalian sering digunakan dalamkegiatan sehari-hari.Perkalian ada maknanya. Utamanya dalamdunia kedokteran. Dalam resep dokter tertulis3 x 1 sehari.Maksudnya dalam sehari minum 3 kali. Setiapkali minum 1 tablet.1. Perkalian Sebagai Penjumlahan BerulangPerkalian merupakan penjumlahan berulangContoh:1. Resep dokter tertulis 3 x 1 artinya dalam seharitiga kali satu-satuA.Melakukan Perkalian Bilangan yangHasilnya Dua Angka2.3+3+3 = 9
1234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789023456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890 1234567890121234567890Pelajaran 9 Melakukan Perkalian713.2+2+2 =....3x 2 = 6Latihan1Latihan21. 5 + 5 + 5 + 5 + 5= ... atau ... x ... = ...2. 3 + 3 + 3 + 3= ... atau ... x ... = ...3. 2 + 2= ... atau ... x ... = ...4. 4 + 4 + 4 + 4= ... atau ... x ... = ...5. 6 + 6 + 6= ... atau ... x ... = ...Lakukan sendiriBuatlah Soal Penjumlahan berulang1. ... + ... + ... + ...= ... atau ... x ... = ...2. ... + ... + ...= ... atau ... x ... = ...3. ... + ... + ... + ...= ... atau ... x ... = ...4. ... + ...= ... atau ... x ... = ...5. ... + ... + ... + ...= ... atau ... x ... = ...2.2.2.2.2 . Perkalian Hasilnya Sampai 505 x 25 x 2 = 10 atau 2 + 2 + 2 + 2 + 2 = 10
Matematika kelas 2 SD/MI12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890112345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890172Contoh:4 x 3 =....Jawab :3 x 4 = 12, karena 3 + 3 + 3 + 3 = 12Latihan3Latihan41. 3 x 4 = ....2. 4 x 5 = ....3. 3 x 7 = ....4. 5 x 5 = ....5. 4 x 8 = ....21020. . . .. . . .31030. . . .. . . .. . . .. . . .40. . . .. . . .. . . .1040. . . .5. . . .. . . .50. . . .. . . .14253
1234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789023456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890 1234567890121234567890Pelajaran 9 Melakukan Perkalian73B.Mengingat Kembali Fakta Perkaliansampai dengan 50Fakta perkalian akan lebih mudah diingat dengancara membilang loncat pada garis bilangan 5 x 2 = 2 +2 + 2 + 2 + 2 = 10Dengan garis bilangan dapat digambar sebagaiberikut:0123456789100 3 6 9 12151821242730Latihan51..... x .... = ....0 4 8 121620242832.... x .... = ....2.02468101214162030.... x .... = ....3.
Matematika kelas 2 SD/MI123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890112345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890112345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901740510 15 20 25 30 35 40.... x .... = ....4.0612 18 24 30 36 42 48.... x .... = ....5.Contoh:30 = 5 x 6 3 x 10Adakah jawaban yang lainBuatlah seperti contoh di atas dengan melihatfakta di atas!1. 40 =2. 50 =3. 36 =4. 18 =5. 20 =Sekarang mari kita membuat tabel perkalian sampaihasil 100.Latihan6
1234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789023456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678902345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890 1234567890121234567890Pelajaran 9 Melakukan Perkalian7512345678910X11 23456789102345678910100Lanjutkan pembuatan tabel perkalian yang belumselesai ini!Latihan7Latihan8Contoh:3 x 10 = ...6 x 10 = ...Jawab:3 x 10 = 10 +10 +10 = 306 x10 = 10 +10 + 10 +10 +10 +10 = 60
Matematika kelas 2 SD/MI12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890112345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789011234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890176Kerjakan seperti contoh:1. 1 x 10 = .... 6. 10 x 1 = ....2. 2 x 10 = .... 7. 10 x 2 = ....3. 3 x 10 = .... 8. 10 x 3 = ....4. 4 x 10 = .... 9. 10 x 4 = ....5. 5 x 10 = ....10. 10 x 5 = ....RefleksiBagaimana perasaanmu ketika belajar perkalian?Perkalian bilangan berapa yang sulit? Apa yangkamu lakukan jika mengalami kesulitan?RangkumanMelakukan perkalian sebenarnya tidak sulitasalkan tahun caranya. Perkalian merupakanpenjumlahan berulang. Jika 3 x 10 artinya 10+10+10 = 30.Perlu diingat bahwa semua bilangan apabiladikalikan dengan bilangan 10 maka hasilnyasama dengan bilangan itu sendiri denganmenambah 0 di belakangnya. Lihat halaman 62!1 x 9 = 92 x 9 = 183 x 9 = 274 x 9 = 365 x 9 = 4510 x 9 = 909 x 9 = 818 x 9 = 727 x 9 = 636 x 9 = 54TAHUKAH KAMU