- = 40%×8= 99×1%= ÷40%= ÷ ×0=
1-2%= 0.375× = ×4÷ ×4= 4.8÷0.12= ( + )×36=
+=
-=
×=
40×0.3=
12÷2.5=
3.14×9=
3.14×7=
8.4÷0.1=
0.47×0=
16×25%=
2.64+4.36=
357÷50≈
7×14= 12.2-0.5= 1-30%-30%= 0.42=
-= 8:2.5:4= 2.3+1.77= ÷=
3.14×11-3.14= 0.22= 0.9÷0.01=
0.2- = 0.5×= 3÷×3=
100×÷0.1= ×3÷×3= 157÷3.14=
6÷13= 5÷7= 42= 0.52= 0.63=
①80%x﹣0.4×1.2=1.2
②(27.5﹣3.5)÷x=4
③4:(1﹣x)=
④