Question

Помогите решить №1079

Answer 1

$1)9.38 - ( - 10 + 5.38) = \\ = 9.38 - ( - 4.62) = \\ = 9.38 + 4.62 = 14 \\ \\ 2) - 8.76 - ( - 3.25 - 10.76) = \\ = - 8.76 - ( - 14.01) = \\ = - 8.76 + 14.01 = 5.25 \\ \\ 3) - 6.19 + ( - 1.5 + 5.19) = \\ = - 6.19 + 3.69 = - 2.5 \\ \\ 4) - ( - 21.4 + 12.7) + ( - 20.4 + 12.7) = \\ = - ( - 8 .7) + ( - 7.7) = 1$

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