Question

resuelve aplicando propiedad distributiva

a) (15-8). 3=
b) 7.(8-3+2)=
c)(11-7).8

d) (28-16):4=
e) 3.(10+6)=
f) (12-6):3=​

Answer 1

Respuesta:

a) (15 - 8)• 3 = (7)• 3 = 21

a) (15 - 8)• 3 = 15 • 3 - 8 • 3 = 45 - 8 • 3 = 45 - 24 = 21

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b) 7 •(8 - 3 + 2) = 7 •(5 + 2) = 7 •(7) = 49

b) 7 •(8 - 3 + 2) = 7 • 8 - 7 • 3 + 7 • 2 = 56 - 7 • 3 + 7 • 2 = 56 -  21 + 7 • 2 = 56 -  21 + 14 = 35 + 14 = 49

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c) (11 - 7)• 8 = (4)• 8 = 32

c) (11 - 7)• 8 = 11 • 8 - 7 • 8 = 88 - 7 • 8 = 88 - 56 = 32

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d) (28 - 16):4 = (12):4 = 3

d) (28 - 16):4 = 28:4 - 16:4 = 7 - 16:4 = 7 - 4 = 3

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e) 3 • (10 + 6) = 3 • (16) = 48

e) 3 • (10 + 6) = 3 • 10 + 3 • 6 = 30 + 3 • 6 = 30 + 18 = 48

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f) (12 - 6):3 =​ (6):3 = 2

f)  (12 - 6):3 =​ 12:3 - 6:3 = 4 - 2 = 2