5.2×10.1 1.25×6.7×0.8
1.45×7.5+0.55×7.5 2.43×5.2+2.43×4.8
①62×0.98 ②6.4×0.5×0.25 ③4.68÷(4.68÷0.4) ④6.3×103-0.63×30
3.67×99+3.67 75÷4+0.25×25
8÷(2.1-2.09)×0.125 4.8×56.7+0.567×520
4.76×101-4.76 4.8×7.5÷1.5
(4.75×5.47+3.53×4.75)÷4.5
9.999×0.8+1.111×2.8
3.6×202 2.65-0.5×0.5=
4×0.8×1.25×0.25 9.5×90+95
①16.4÷25÷4
②6.9×3.6+3.6×3.1
③14.4+1.25÷0.5
④(16.8+4.9)÷0.7
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﹣(+)
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]