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2.8x0.25+0.25怎么用简便计算

2.8x0.25+0.25 解: 原式= =0.25×(4x0.7)+0.25 =0.25x4x0

如图

0.25×2.8×0.4简便计算 解:原式=0.25×0.4×2.8 =0.1×2.8 =0.28

2.2×0.25+2.8×0.25 =0.25×(2.2+2.8) =0.25×5 =1.25

2.8X0.25怎么简算 =0.25x4x0.7 =1x0.7 =0.7

1.2x2.5+28x0.25的简便计算 解:根据提取公因式的简便方法, 原式=1.2x2.5+2.

9.42+2.8÷0.25 = 9.42+2.8×4 = 9.42+11.2 = 20.62

7.2÷0.25+2.8×4=40。 简便计算过程如下: 7.2÷0.25+2.8×4 =7.2×1

9.42加2.8除以0.25 =9.42+(2.8×4)÷(0.25×4) =9.42+11.2

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