小数脱式计算和简便运算50道 4.3×2.1-7.6 7.8÷[12.5-(1.9+6.7)] 7.5×16.3+7.5×3.7 3.08×101-3.08 19.73-0.01×97-8.03 5.4 3.7×19.08-3.7×9.08 12.5 50-7.9×5.3 3.25 1.25×4.3×2.4 4.75 0.22×1.5+0.92÷2.3 4.05 0.04×12.7×250 87 ÷[1.5×（4.3-3.7）] ×9.7×0.8 ×[10.8÷（7.2-5.4）] ×17.5+2.5×4.75 ÷[1.8×（3.36-2.86）] ×10.1 7.2÷0.9-1.2×5 2.5×[1÷（3.1-3.05）] 76.5+76.5×99 25.8×3.6+25.8×6.4 15.52-1.6×5-5.7 4.8 3.6÷（1.2+0.6）×0.5 3.14 4.8×（3.5-2.1）÷7 18.75-0.23 （4.2+4.2÷2.1）÷0.2 45.15 0.25×[（2.8+4.4）÷1.2] [0.15+ 6.28÷0.8÷5 8.8 ×12-4.8×2 ×101 ×2-4.54 ×9.9 （2.4-1.8）]×20 ×12.5 3.6×2.5 1.25×（100+8）= 9.4×10.1 93.7×0.32+93.7×0.68= 3.9×1.4÷0.35 6.48+4.8-32 42÷（5.25÷0.25） 1.25×3.2×0.8 14.5 21÷2.5÷0.4 8.5 5.5×17.3+2.7×5.5 10.01 12.5×0.96×0.8 0.25 4.8×10.1 0.32÷3.2 ÷7.5 ×1.2 ×0.26+0.74 ×101-10.01 ×8.5×4 ×403 60.8-36 本文来源：https://www.wddqw.com/doc/9fcf1a0681c4bb4cf7ec4afe04a1b0717fd5b3c6.html