Question

1.6×7.5-1.6+1.6×3.5怎么简算？

Answer 1

1.6×7.5-1.6+1.6×3.5
=(7.5-1+3.5)×1.6
=10×1.6
=16

Answer 2

1.6 x 7.5 x 1.25 =(4 x 1.25) x (0.4 x 7.5) =5 x 3 =15

Answer 3

1.6 x 7.5 x 1.25 =(4 x 1.25) x (0.4 x 7.5) =5 x 3 =15

Answer 4

可以提取公因式。
原式＝1.6×（7.5－1＋3.5）
＝1.6×10
＝16

Answer 5

1.6×7.5-1.6+1.6×3.5
=(7.5+3.5-1)×1.6
=10×1.6
=16