×1.2= ×0= ÷4= -20%=
÷= 32×= 0.3²= ×÷×=
0.4×13+ ×7
=
-0=
15×=
1÷20%=
101×0.3-0.3=
+1 = ×6%= 1 + = ×56×0× =
× ÷ × = 25%+7.5%= ×125%= 4-4%=
24÷0.3%= -17%=
6×= ×2.4= 1÷= ÷7=
100÷10%= ÷= +×7= ×0.9×=
×9= ×0= ×= ×17=
×100= += ×= ×=
①600﹣300÷20×5
②(4.8﹣3.8÷2)×0.3
③3.45×99×2+6.9
④(8+ )÷4
⑤ ÷9+ ×
⑥ ÷[ ×( - )]