Question

1.16x1.25x2.5的简便方法?怎么算最简单

1.16x1.25x2.5的简便方法?怎么算最简单

Answer 1

1.16×1.25×2.5
=（4×0.29）×1.25×2.5
=（4×2.5）×0.29×1.25
=10×0.29×1.25
=2.9×1.25
=0.3×8×1.25+0.5×1.25
=0.3×10+0.625
=3+0.625
=3.625

Answer 2

1.16x1.25x2.5的简便方法?怎么算最简单

=1.45x2.5
=3.625