3.2×2.5×0.125 12.9×101 4.3×2.4+2.4×5.7
22×0.24+2.2×2.6
6.9×101
11.43﹣(0.67+2.43)
12.5×3.2
7.7÷2.5÷0.7
36.7﹣3.02×4﹣7.92
99×5.7+5.7
2.4×12.5
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1
①25×32×1.25
②(+0.375)÷(×)
③×+÷7
④6﹣(+)