Question

计算：（-0.1）³-

1

4

×（-

2

5

）²=______．

Answer 1

（-0.1）³-

1

4

×（-

2

5

）²=（-

1

10

）³-

1

4

×

4

25

=-

1

1000

-

1

25

=-

1+40

1000

=-

41

1000

．