发布人:繁体字网(www.fantiz5.com) 发布时间:2015-10-24 07:30:00
试题原文 |
|
①0.25×1.25×0.8×0.4, =(0.25×0.4)×(1.25×0.8), =0.1×1, =0.1; ②[(25%-
=[
=
=
③1990×198.9-1989×198.8, =1990×198.9-198.9×1988, =×198.9, =2×198.9, =397.8; ④2007÷2007
=2007÷
=2007÷
=2007÷
=2007×
=
=1; ⑤(1+
=1+
=(1+1+1+…+1)+
=20+
=20+
=20+36, =56. |
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“怎样简便就怎样算①0.25×1.25×0.8×0.4②[(25%-112)×316]÷0.37..”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”。