早教吧作业答案频道 -->数学-->
怎样简便就怎样算.43×25×4023×(200+4)167+289+33135×17+17×658×5×125×4097×25-17×25.
题目详情
怎样简便就怎样算.
43×25×40 | 23×(200+4) | 167+289+33 |
135×17+17×65 | 8×5×125×40 | 97×25-17×25. |
▼优质解答
答案和解析
(1)43×25×40
=43×(25×40)
=43×1000
=43000;
(2)23×(200+4)
=23×200+23×4
=4600+92
=4692;
(3)167+289+33
=167+33+289
=200+289
=489;
(4)135×17+17×65
=(135+65)×17
=200×17
=3400;
(5)8×5×125×40
=8×125×(40×5)
=1000×200
=200000;
(6)97×25-17×25
=(97-17)×25
=80×25
=2000.
=43×(25×40)
=43×1000
=43000;
(2)23×(200+4)
=23×200+23×4
=4600+92
=4692;
(3)167+289+33
=167+33+289
=200+289
=489;
(4)135×17+17×65
=(135+65)×17
=200×17
=3400;
(5)8×5×125×40
=8×125×(40×5)
=1000×200
=200000;
(6)97×25-17×25
=(97-17)×25
=80×25
=2000.
看了 怎样简便就怎样算.43×25...的网友还看了以下:
简便计算1.(+1)+(-3)+(+5)+(-7)+…+(+97)+(-99)2.1/2+1/3+ 2020-04-07 …
对角线数独1***4**3**2*3****1**3**8****6*4****52***5*6* 2020-04-27 …
真的很急啊..(1)(1/4)x-1/2=3/4(2)(7x-5)/4=3/8(3)(2x-1)/ 2020-05-13 …
16分之3-8分之5÷4 20分之19-(3分之2+4分之1) 1216分之3-8分之5÷4 20 2020-05-16 …
问几道整式的乘法的题1(2a+3)(3a-2)2(3x-5y)(2x+3y)3(3/2a+8/3) 2020-05-19 …
α1=(6,4,1,-1,2)α2=(1,0,2,3,-4)α3=(1,4,-9,-16,22)α 2020-06-29 …
6÷3/8–3/8÷64/7×5/9+3/7×5/95/2-(3/2+4/5)7/8+(1/8+1 2020-07-18 …
观察1=1²,1+3=2²,1+3+5=3²(1)可得1+3+5+……+(2n-1)=如果1+3+ 2020-07-19 …
求不等式组的整数值求同时适合不等式1+(x/3)>3-(x-2/2)和不等式1+(3x+3/8)< 2020-08-03 …
计算.4÷8/3-1/2=1/5+2/7÷5/7=8÷2/3+4=25÷(1-1/6)=18÷(1+ 2020-12-26 …