Question

помогите пожалуйста! заранее спасибо!​

Answer 1

1) 0,5 ⋅ 74,8 ⋅ 2 = (0,5 ⋅ 2) ⋅ 74,8 = 1 ⋅ 74,8 = 74,8

2) 0,42 ⋅ 5,19 + 5,19 ⋅ 0,58 = 5,19(0,42 + 0,58) = 5,19 ⋅ 1 = 5,19

3) 62,9 ⋅ 1,8 - 62,7 ⋅ 1,8 = 1,8(62,9 - 62,7) = 1,8 ⋅ 0,2 = 0,36