Question

3.2×0.25×0.125 (简便计算)（写出过程）

跪求答案。。。。急！！！

Answer 1

解：

3.2=4x8x10 负一次方

0.25= 25 x 10 负二次方

0.123=125 x 10 负三次方

所以：

3.2x0.25x0.125

=（4x8x10 负一次方）x（25 x 10 负二次方）x（125 x 10 负三次方）
= （4x25）x（8x125）x10负六次方
=100x1000x 10负六次方
=10两次方 x 10三次方 x10负六次方
=10负一次方
=0.1

Answer 2

3.2×0.25×0.125
=0.4×0.25×8×0.125
=0.1×1
=0.1

Answer 3

解：3.2×0.25×0.125
＝﹙4×0.25﹚×﹙0.8×0.125﹚
＝1×0.1
＝0.1

Answer 4

3.2 * 0.25 * 0.125
=3.2 * 1/4 * 1/8
=3.2 * 1/32
=0.1

Answer 5

3.2×0.25×0.125=3.2*（1/4）*0.125=0.8*（1/8）=0.1