2÷24= ×= 16×40%=
112= 51×99≈ 3.5×2÷3.5×5=
× =
6﹣4.92=
25×0.7×4=
+0.5=
3- =
6.3÷0.21=
1﹣1÷ =
(0.6- )×16=
26+35= 36÷9= 1﹣0.43= 2.5×4= 402﹣299≈
1× = ÷ = + = × = 418+71≈
5.5+4.5= 6.2-5= × = 2.4÷0.2=
+ = 3×20= ÷ = 0.44×5=
45×0.2= 10﹣0.89= 2.8×= 8÷=
0.8×125%= ÷= += 1﹣1÷9=
0.32= 32×196≈
改正:
①80%x﹣0.4×1.2=1.2
②(27.5﹣3.5)÷x=4
③4:(1﹣x)=
④