Вычислите произведение: a) 2,5 · 2,045 · 8; б) 7,5 · 69,4 · 0,8; в) 0,5 · 2 · 0,12 · 2; г) 5 · 1,5 · 7,04 · 10.

а) 2,5 ⋅ 2,045 ⋅ 8 = 2,5 ⋅ 8 ⋅ 2,045 = 20 ⋅ 2,045 = 40,9;

б) 7,5 ⋅ 69,4 ⋅ 0,8 = 7,5 ⋅ 0,8 ⋅ 69,4 = 6 ⋅ 69,4 = 416,4;

в) 0,5 ⋅ 2 ⋅ 0,12 ⋅ 2 = 0,5 ⋅ 2 ⋅ 2 ⋅ 0,12 = 2 ⋅ 0,12 = 0,24;

г) 5 ⋅ 1,5 ⋅ 7,04 ⋅ 10 = 5 ⋅ 1,5 ⋅ 10 ⋅ 7,04 = 75 ⋅ 7,04 = 528.

Ответ: а) 40,9; б) 416,4; в) 0,24; г) 528.