Question

QUIZ (1280/1300)
Materi : Operasi Hitung
★✩✩✩✩

Tentukan hasil perkalian dari 1.280 × 821 dengan cara perkalian bersusun!

(Pakai Cara!)​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Answer 1

Jawaban ada di lampiran.

Answer 2

Verified answer

Penjelasan dengan langkah-langkah:

Penyelesaian :

Perkalian :

• = 1280 × 821
• = 1280 + 1280 + 1280 .... + 1280
• = 1050880

[tex] \\ [/tex]

Pembahasan :

Rumus bilangan bulat :

• Penjumlahan, pengurangan, perkalian, dan pembagian sama saja

[tex] \gray{ \sf ( + ) + ( + ) = ( + )}[/tex]

[tex] \gray{ \tt ( - ) + ( - ) = ( + )}[/tex]

[tex] \gray{ \tt ( + ) + ( - ) = ( - )}[/tex]

[tex] \gray{ \tt ( - ) + ( + ) = ( - )}[/tex]

[tex] \\ [/tex]

[tex] \boxed{ \red{ \tt contoh \: perkalian : }}[/tex]

“ Perkalian 1 :

• 1 × 1 = 1
• 1 × 2 = 2
• 1 × 3 = 3
• 1 × 4 = 4
• 1 × 5 = 5
• 1 × 6 = 6
• 1 × 7 = 7
• 1 × 8 = 8
• 1 × 9 = 9
• 1 × 19 = 10

“ Perkalian 2 :

• 2 × 1 = 2
• 2 × 2 = 4
• 2 × 3 = 6
• 2 × 4 = 8
• 2 × 5 = 10
• 2 × 6 = 12
• 2 × 7 = 14
• 2 × 8 = 16
• 2 × 9 = 18
• 2 × 10 = 20

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