46×132 12×(125×8)
120×24 (25×4)×16
99×128 24×120
(25×16)×4 132×46
125×8×12 128×99
48×50×4 48×(50×4)
用简便方法计算.
(1)3.8+1(2)
(3)(1﹣
)×26+26÷13×2.
用简便方法计算,并写出计算过程
10﹣0.35﹣0.6525×1.25×32.
计算.能简算的要简算,并写出简算过程.
(1)(0.12+0.22+0.32+0.42)2÷(0.13+0.23+0.33+0.43)
(2)3.97÷7+×4.03﹣
(3)0.0021×[1+2.93÷(11
﹣1.9)]÷0.001
(4)0.125×0.25×0.5×64
(5)4936×(0.75×42.7﹣0.573×25+57.3)÷3.
888×1.12545×0.25+36÷4+
×19
用简便方法计算,写出简算过程
(1)2.5×3.2×1.25(2)4.05﹣(2.05+)
(3)5.39++4.61+
(4)0.588×
+4×9.412+
×0.588.