一、简便运算 0.25×8.5×4 12.5×0.96×0.8 0.25×0.73×4 4. 36×12.5×8 0.25×16.2×4 1.25×2.5×32 3.2×0.25×12.5 0.25×36 二、简便运算 (1.25 - 0.125) × 8 4.8 × 10.1 3.6 × 102 0.39×199 0.32×403 3.65×10.1 0.85×9.9 三、简便运算 3.72×3.5+6.28×3.5 15.6×2.1-15.6×1.1 3.83×4.56+3.83 ×5.44 56.5×99+56.5 7.09×10.8-0.8×7.09 9.7×99 +9.7 4.2×99+4.2 27.5×3.7-7.5×3.7 3.9 ×2.7+3.9×7.3 四、简便运算 2.3×16+2.3×23+2.3 5.4×11-5.4 10.7× 16.1-15.1×10.7 7.74×(2.8-1.3)+1.5×2.26 10.6×0.35-9.6×0.35 7.6×0.8+ 0.2×7.6 五、简便运算 1.28 × 8.6 + 0.72 × 8.6 0.65 × 101 8.9×1.01 六、简便运算 4.8×7.8+78×0.52 1.87×9.9+0.187 3.14×0.68+ 31.4×0.032 12.7×9.9+1.27 3.65×4.7 -36.5×0.37 101×0.87-0.91 ×87 七、用简便方法计算 6.66 × 3.3+6.66 ×6.7 23×86 7.2 × 0.2 +2.4× 1.4 46 × 57 +