① ② ③
53.7÷2.5÷0.4 0.35×101 3.7×4.8+0.37×52
4×0.25=
72=
2.2×0=
1.25×5×8=
7.5-2.5=
1÷9=
7.9×11-7.9=
999×2.5+333×12.5
382×101-382 81+9×91 682-(324-18)
1.25×2.5×3.2 12.13+7.15-1.13+2.85 99×1.2
12.5×64
3.6+5.7+6.4+2.3
7.8-7.3+2.2-2.7
9.7÷8÷1.25