Question

Решите примеры

1)-70:(-7)+2*(-3)-(-38)
2)(-15-63:(-9))*(-4-4)
3)(-3-4)*5+(-40):(-10)

Answer 1

$- 70 div ( - 7) + 2 times ( - 3) - ( - 38) = 42 \ 1) - 70 div ( - 7) = 10 \ 2)2 times ( - 3) = - 6 \ 3)10 + ( - 6) - ( - 38) = 10 - 6 + 38 = 4 + 38 = 42$

$( - 15 - 63 div ( - 9)) times ( - 4 - 4) =64 \ 1) - 63 div ( - 9) = 7 \ 2) - 15 + 7 = - 8 \ 3) - 4 - 4 = - 8 \ - 8 times ( - 8) = 64$

$( - 3 - 4) times 5 + ( - 40) div ( - 10) = - 31 \ 1) - 3 - 4 = - 7 \2) - 7 times 5 = - 35 \ 3) - 40 div (- 10) = 4 \ 4) - 35 + 4 = - 31$