Question

2.5✘4.8✘1.25的简便方式？

Answer 1

2.5x4.8ⅹ1.25当然是等于15啦！有简便方法的。

Answer 2

原式=2.5×2×0.3×8×1.25
=5×0.3×10
=15

Answer 3

2.5×6×(0.8×1.25)
=15×1
=15

Answer 4

2.5x6x0.8x1.25
15x1
15

Answer 5

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