100﹣98.2﹣1.8. 8+4.7+1
+5.3 14.71﹣5
﹣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