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.
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.
计算下面各题,能简算的要简算
1243﹣1334÷23×12 2×3.14×8×5+3.14×82 8.86﹣5.29﹣1.71﹣1.86
+(1﹣)×÷ 85×0.75+16×75%﹣.
简算:
①57.5﹣14.25﹣15 ②102.31×59
③(×10.68+8.52×)÷1 ④0.1+0.2+0.3+0.4+…+0.9+0.1+0.11+0.12+…+0.98+0.99.
试题篮
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