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试题原文 |
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(1)2.37×6.3+2.37×3.7 =(6.3+3.7)×2.37, =10×2.37, =23.7; (2)2.5×1.25×0.32 =2.5×1.25××0.4×0.8, =(2.5×0.4)×(1.25×0.8), =1×1, =1; (3)4.4×25 =(4+0.4)×25, =4×25+0.4×25, =100+10, =110; (4)2.64÷5÷0.2 =2.64÷(5×0.2), =2.64÷1, =2.64; (5)3.8×10.1 =3.8×(10+0.1), =3.8×10+3.8×0.1, =38+0.38, =38.38. |
经过对同学们试题原文答题和答案批改分析后,可以看出该题目“简便计算:2.37×6.3+2.37×3.72.5×1.25×0.324.4×252.64÷5..”的主要目的是检查您对于考点“小学运算定律和简便算法”相关知识的理解。有关该知识点的概要说明可查看:“小学运算定律和简便算法”。