3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55
0.25×36 8.25+1.79-0.59+1.75 23.4+0.8-13.4+7.2
0.32×405 0.85×199 3.2+0.36+4.8+1.64
1.23+3.4-0.23+6.6 0.25×0.73×4 12.7-（3.7+0.84）
36.54-1.76-4.54 0.25×8.5×4 2.5×0.96×0.8
7.6×0.8+0.2×7.6 1.28×8.6+0.72×8.6 10.4-9.6×0.35
0.8×（4.3×1.25） 3.12+3.12×99 28.6×101-28.6
0.86×15.7-0.86×14.7 2.4×102 2.31×1.2×0.5
21
(45.9-32.7)÷8÷0.125 3.14×0.68＋31.4×0.032 9.9×1.01
5.6÷1.25÷0.8÷2.5÷0.4 18-1.8÷0.125÷0.8 7.2×0.2＋2.4×1.4
3.9×2.7＋3.9×7.3 12.7×9.9＋1.27 21×(9.3－3.7)-5.6
2.3×16+2.3×23+2.3 9.43-（6.28-1.57） 0.79×198
101×0.87-0.91×87 10.7×16.1-15.1×10.7 5.93+0.19+2.81
4.8+8.63+5.2+0.37 1.76+0.195+3.24 7.6×99+7.6
86×99+86 7.09×10.8－0.8×7.09 6.9＋4.8＋3.1
0.456＋6.22＋3.78 15.89＋(6.75－5.89) 1.25×8.8
22