36×25%=
12.6÷3=
7.3﹣3=
23×489≈
9.1+0.09=
= 0.3÷0.7= 32÷1%=
1-1%= 0.33= 756- 198=
88+8.8= 90÷5= 0.1÷0.2= 0.12×0.8= 0.3²=
÷10= ×0.25= - = + = ×7÷ ×7=
⑴ =
⑵ =
⑶ =
⑷1+40%=
⑸0.62=
⑹0.8×0.25=
⑺10﹣0.1=
⑻197+26=
⑼2.6×5=
÷3= 1+40%=
:8= 0.62= 0.8×0.25= 10-0.01= ( )×0.4=1
(用两种方法解答1.求出面积再比较;2.用“比”的知识来解题,先求半径之比,再求面积之比.)