2.52=
2.5÷40%=
1.25×32=
(-+)×12 0.25×32×12.5%
99×55%+0.55 125%×3.2×25%
0.8×2.5=
0.8×0.6=
6.3+0.9=
10-0.36=
0.48÷0.8=
0.4÷0.01=
1.25×8=
70×0.8=
0.35÷0.7=
0.1×0.4=
2.5×3=
15×8=
2.6÷13=
1.5+0.7=
43=
1.25×3.1×0.8=
3+32=
8.7÷0.3=
29÷1000=
0.36÷12=
8km28m=km 公顷=6公顷50平方米