发布人:繁体字网(www.fantiz5.com) 发布时间:2015-10-24 07:30:00
试题原文 |
|
(1)1.7+5
=1.7+(5
=1.7+9, =10.7; (2)17.625-(4.4+7
=17.625-4.4-7
=17.625-7
=10-4.4, =5.6; (3)3.35×6.4×2+6.7×3.6, =(3.35×2)×6.4+6.7×3.6, =6.7×6.4+6.7×3.6, =6.7×(6.4+3.6), =6.7×10, =67; (4)0.25×48×1.25, =0.25×(6×8)×1.25, =(0.25×6)×(8×1.25), =1.5×10, =15; (5)3.34-5÷17-
=3.34-
=3.34-(
=3.34-1, =2.34; (6)
=
=
=
|
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“用简便方法计算(要写出主要简算过程).1.7+5150+3.98;17.625-..”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”。