раскройте скобки 15-(-4-38) -(5.76-1 3/4)+(-4.8+10)-(3.56+7 1/8). Created by dsgssaXarw. matematika-ru

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July 2022 2 5 Report

раскройте скобки
15-(-4-38)
-(5.76-1 3/4)+(-4.8+10)-(3.56+7 1/8)

tatsach 15-(-4-38)=15+4+38=57

-(5.76-1 3/4)+(-4.8+10)-(3.56+7 1/8)=-5.76+1 3/4-4.8+10-3.56-7 1/8=-4.12+1 3/4-7 1/8=-4.12+1.75-7.125=-9.495

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svetazuna 15 - (-4 - 38) = 15 - (- (4 + 38)) = 15 - (- 42) = 15 + 42 = 57,
или:
15 - (-4 - 38) = 15 + 4 + 38 = 57,

-(5,76 - 1 3/4) + (-4,8 + 10) - (3,56 + 7 1/8) =
= -5,76 + 1 3/4 - 4,8 + 10 - 3,56 - 7 1/8 =
= -4,12 + 1 6/8 - 7 1/8 =
= -4,12 + 1 6/8 - 6 9/8 =
= -4 12/100 - 5 3/8 =
= -4 24/200 - 5 75/200 =
= -9 99/200 или -9,495

1 votes Thanks 1

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