1. Isi dari titik-titik adalah:
a. (24 x 12) + (24 x 8) = 24 x (12 + 8) = 480
b. ( 30 x (-6) - ( 30 x (-16) = 30 x (-6-(-16)) = 300
c. 20 x (-10 - 11) = ( 20 x (-10) - (20 x (-11)) = -420
d. 30 x (22 - (-7) = ( 30 x 22) - (30 x (-7) = 870
e. (25 x 4) - ( 25 x 8) = 25 x (4 - 8) = -100
2. Hasil operasi hitung berdasarkan sifat distributif:
a. (15 x 32) + (15 x 18) = 750
b. (8 x 41) + (8 x 59) = 800
c. (27 x 112) - (27 x 12) = 2.700
d. (150 x 32) - (150 x 12) = 3.000
e. 3 x 483 = 3 x (400 + 80 + 3) = 1.449
Penjelasan dengan langkah-langkah:
Diketahui:
1.
a. (24 x . . .) + (24 x. . .) = 24 x (12 + 8) =. . .
b. (. . .x (-6) - (. . . x (-16) = 30 x (-6-(-16) =. . .
c. 20 x (-10 - 11) = (. . .x (-10) - (20x. . .) =. . .
d. 30 x (22 - (-7) = (. . .x. . .) - (30 x (-7) =. . .
e. (25 x . . .) -(. . . x 8) = 25 x (4 - 8) =. . .
2.
a. (15 x 32) + (15 x 18) = ...x(...+...)=...x...=....
b. (8 x 41) + (8 x 59) = ...x(...+...) = ...x...=....
c. - (27 x 112) - (27 x 12) = ...x(...- ...) = ...x...=....
d. (150 x 32) - (150 x 12) =...x(...-...)=...x...=....
e. 3 x 483 = 3 x (400+80+ 3) = (...x...)+(...x...)+(...x...) = ...+...+...= ....
Ditanya:
1. isilah titik-titik dengan bilangan yang tepat.
2. Tentukan hasil operasi hitung berikut menggunakan sifat distributif.
Jawab:
Nomor 1
a. (24 x 12) + (24 x 8) = 24 x (12 + 8) = 24 x 20 = 480
b. ( 30 x (-6) - ( 30 x (-16) = 30 x (-6-(-16)) = 30 x 10 = 300
c. 20 x (-10 - 11) = ( 20 x (-10) - (20 x (-11)) = 20 x (-21) = -420
d. 30 x (22 - (-7) = ( 30 x 22) - (30 x (-7) = 30 x 29 = 870
e. (25 x 4) - ( 25 x 8) = 25 x (4 - 8) = 25 x (-4) = -100
Nomor 2
a. (15 x 32) + (15 x 18)
= 15 x (32 + 18)
= 15 x 50
= 750
b. (8 x 41) + (8 x 59)
= 8 x (41 + 59)
= 8 x 100
= 800
c. (27 x 112) - (27 x 12)
= 27 x ((-112) - 12)
= 27 x 100
= 2.700
d. (150 x 32) - (150 x 12)
= 150 x (32 - 12)
= 150 x 20
= 3.000
e. 3 x 483
= 3 x (400 + 80 + 3)
= (3 x 400) + (3 x 80) + (3 x 3)
= 1.200 + 240 + 9
= 1.449
Pelajari Lebih Lanjut
- Materi tentang bilangan bulat, rumus operasi hitung pada bilangan bulat dapat disimak juga di brainly.co.id/tugas/2480578
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