÷3= 0.88+1.22= +25%= 5--= 1÷+÷1=
10-20%= 0÷1= 0.9×= 1-+= 1.25×4×2.5×8=
0.125×80=
1:0.25=
1÷10%=
40%×2.5=
5.9+3.1= 3-1.8= 2.7÷3= 3.5×3=
+ = 3- = × = 5÷ =
8÷0.1=
2÷=
7÷1.4= 0.2×30%= ÷0.1= ÷ =
2-0.75= 324÷3= 1.63+2.3= 0.25×40=
40×25%= 1.03×10= 3×45= 1÷10%= 2.8×=
1.57﹣0.85= 0.49÷0.7= 3.05+6.2= 0.6:0.75= kg:40g=
①0.83+1.675 ②756+1328 ③+ ④57%+