整数乘除法简便计算分类练习题(带答案)Word格式文档下载.doc
- 文档编号:6007955
- 上传时间:2023-05-05
- 格式:DOC
- 页数:4
- 大小:42KB
整数乘除法简便计算分类练习题(带答案)Word格式文档下载.doc
《整数乘除法简便计算分类练习题(带答案)Word格式文档下载.doc》由会员分享,可在线阅读,更多相关《整数乘除法简便计算分类练习题(带答案)Word格式文档下载.doc(4页珍藏版)》请在冰点文库上搜索。
80×
16×
125
=(80×
125)×
4
=10000×
=4000000
5×
=(125×
2)×
=1000×
10×
=100000
56×
125
=7×
=7000
2、利用乘法分配律简算
46×
101
=46×
(100+1)
100+46×
1
=4600+46
=4646
17×
999
=17×
(1000-1)
=17000-17
=16983
98
=125×
(100-2)
=12500-250
=12250
37×
99
=37×
(100-1)
=3700-37
=3663
234×
102
=234×
(100+2)
=23400+468
=23868
(100-4)×
25
25-4×
=2500-100
=2400
3、逆用乘法分配律简算
95×
71+95×
29
=95×
(71+29)
100
=9500
25+35×
25+25
=25×
(64+35+1)
=2500
123×
235-24×
235+235
=235×
(123-24+1)
=235
586×
124+29×
586-586×
53
=586×
(124+29-53)
=58600
62×
38+38×
38
=38×
(62+38)
=3800
54×
154-45×
54-54×
9
=54×
(154-45-9)
=5400
67×
12+67×
35+67×
52+67
=67×
(12+35+52+1)
=6700
4、利用商不变的性质简算(分子分母同时乘以相同的数、商不变)
21000÷
=
21000×
8÷
8)
=168000÷
=168
110÷
5
=110×
2÷
=220÷
=22
44000÷
=44000×
=352000÷
=352
47700÷
900
=47700÷
100÷
(900÷
100)
=477÷
9
=53
5、利用除法分配律简算
(99+88)÷
11
99÷
11+88÷
11
=9+8
=17
25÷
13+14÷
13
=(25+14)÷
=39÷
=3
13÷
9+5÷
=(13+5)÷
=18÷
=2
31÷
5+32÷
5+33÷
5+34÷
=(31+32+33+34)÷
=130÷
=26
187÷
12-63÷
12-52÷
12
=(187-63-52)÷
=72÷
=6
(12+24+36+48)÷
6
=12÷
6+24÷
6+36÷
6+48÷
6
=2+4+6+8
=20
21÷
5-6÷
=(21-6)÷
=15÷
=3
6、利用乘除法的带符号“搬家”进行简算
360×
40÷
60
=360÷
60×
40
=6×
=240
99×
88÷
33÷
22
=(99÷
33)×
(88÷
22)
=3×
2
=6
27×
=27÷
9×
8
=24
6÷
8×
4÷
=24÷
7、乘除同级运算的去括号法则25×
(4×
43)
4×
43
=4300
45000÷
90)
=45000÷
90÷
=500÷
=20
37)
37
=37000
562×
397÷
(281×
397)
=(562÷
281)×
(397÷
=2×
=2
5600÷
(1400÷
4)
=5600÷
1400×
=4×
=16
8、乘除同级运算的括号法则
31000÷
=31000÷
=31
1320×
500÷
250
=1320×
(500÷
250)
=2640
35×
222÷
111
=35×
(222÷
111)
=70
37500÷
25
=37500÷
25)
=375
61000÷
125÷
8
=61000÷
=61
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 整数 除法 简便 计算 分类 练习题 答案