ответ:1) -1,25 * (8 * 4) =-40
2) (8 - 3/7) * (-7) =-53
3) -0,25 * (-7) * 4 =7
4) -8 1/3 - 2/3) : 3 =-8 1/3 - 2/3 = - 8 - 1/3 - 2/3 = - 8 - 1 + 2/3 = - 8 - 3/3 = - 8 - 1 = - 9 = -9
-9÷3 = -9/3 = - 3 · 3/3 = - 3 = -3
ответ:1) -1,25 * (8 * 4) =-40
2) (8 - 3/7) * (-7) =-53
3) -0,25 * (-7) * 4 =7
4) -8 1/3 - 2/3) : 3 =-8 1/3 - 2/3 = - 8 - 1/3 - 2/3 = - 8 - 1 + 2/3 = - 8 - 3/3 = - 8 - 1 = - 9 = -9
-9÷3 = -9/3 = - 3 · 3/3 = - 3 = -3