Question

直接写得数．0.36+0.4= 12÷40%= 5- 1 8 - 7 8 = 1 2 × 1 2 ÷ 1 2 × 1 2

Answer 1

0.36+0.4=0.76， 12÷40%=30， 5-

1

8 -

7

8 =4，

1

2 ×

1

2 ÷

1

2 ×

1

2 =

1

4 ，

1÷1%=100， 1-27.5%=0.725，

3

20 ×100% =0.15， (18+

9

20 )÷9 =2

1

20 ．