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试题原文 |
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(1)99×6.25+6.25, =(99+1)×6.25, =100×6.25, =625; (2)(5.6×0.3-0.68)÷0.25×4, =(1.68-0.68)÷0.25×4, =1÷0.25×4, =4×4, =16; (3)6.9-(0.6+4.5)÷1.7, =6.9-5.1÷1.7, =6.9-3, =3.9; (4)7.2÷1.25÷0.8, =7.2÷(1.25×0.8), =7.2÷1, =7.2; (5)(25.5+17.25)÷0.25+0.75, =42.75÷0.25+0.75, =171+0.75, =171.75; (6)2.63×2.3+2.3+6.37×2.3, =(2.63+1+6.37)×2.3, =10×2.3, =23. |
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“(1)99×6.25+6.25(2)(5.6×0.3-0.68)÷0.25×4(3)6.9-(0.6+4..”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”。