早教吧作业答案频道 -->其他-->
用简便方法计算.37+22+63+458×(125×11)530-475-257.65+3.72+6.35+6.2864×99+644900÷25�用简便方法计算.37+22+63+458×(125×11)530-475-257.65+3.72+6.35+6.2864×99+644900÷25÷4(100+4)×2517×43-43×7
题目详情
用简便方法计算. 37+22+63+45 8×(125×11) 530-475-25 7.65+3.72+6.35+6.28 64×99+64 4900÷25�
用简便方法计算.
37+22+63+45 8×(125×11) 530-475-25 37+22+63+45 8×(125×11) 530-475-25 7.65+3.72+6.35+6.28 64×99+64 4900÷25÷4 7.65+3.72+6.35+6.28 64×99+64 4900÷25÷4 (100+4)×25 17×43-43×7 13.65-(3.65+8.5) (100+4)×25 17×43-43×7 13.65-(3.65+8.5)
用简便方法计算.
37+22+63+45 | 8×(125×11) | 530-475-25 |
7.65+3.72+6.35+6.28 | 64×99+64 | 4900÷25÷4 |
(100+4)×25 | 17×43-43×7 | 13.65-(3.65+8.5) |
37+22+63+45 | 8×(125×11) | 530-475-25 |
7.65+3.72+6.35+6.28 | 64×99+64 | 4900÷25÷4 |
(100+4)×25 | 17×43-43×7 | 13.65-(3.65+8.5) |
▼优质解答
答案和解析
(1)37+22+63+45
=(37+63)+(22+45)
=100+67
=167;
(2)8×(125×11)
=(8×125)×11
=1000×11
=11000;
(3)530-475-25
=530-(475+25)
=530-500
=30;
(4)7.65+3.72+6.35+6.28
=(7.65+6.35)+(3.72+6.28)
=14+10
=24;
(5)64×99+64
=64×(99+1)
=64×100
=6400;
(6)4900÷25÷4
=4900÷(25×4)
=4900÷100
=49;
(7)(100+4)×25
=100×25+4×25
=2500+100
=2600;
(8)17×43-43×7
=(17-7)×43
=10×43
=430;
(9)13.65-(3.65+8.5)
=13.65-3.65-8.5
=10-8.5
=1.5.
=(37+63)+(22+45)
=100+67
=167;
(2)8×(125×11)
=(8×125)×11
=1000×11
=11000;
(3)530-475-25
=530-(475+25)
=530-500
=30;
(4)7.65+3.72+6.35+6.28
=(7.65+6.35)+(3.72+6.28)
=14+10
=24;
(5)64×99+64
=64×(99+1)
=64×100
=6400;
(6)4900÷25÷4
=4900÷(25×4)
=4900÷100
=49;
(7)(100+4)×25
=100×25+4×25
=2500+100
=2600;
(8)17×43-43×7
=(17-7)×43
=10×43
=430;
(9)13.65-(3.65+8.5)
=13.65-3.65-8.5
=10-8.5
=1.5.
看了 用简便方法计算.37+22+...的网友还看了以下:
离散型随机变量X平方的数学期望,即E[X^2]怎么求?比如 X -2 0 2P 0.4 0.3 0 2020-04-05 …
二进制转十进制这样计算对吗《1000001000》0*2^0+0*2^1+0*2^2+1*2^3+ 2020-04-07 …
直接写出得数(约等号的填估算值).2.8+0.12=2.5×0.4=9÷1.5=4000÷125÷ 2020-04-07 …
0.8+0.22=475-299=400÷25÷8=250×0.02=56×99=0.8+99×0 2020-04-07 …
课训:2.用配方解下列方程(1)x^2+2x=3(2)2x^2+4x-3=0(3)2x^2+x-5 2020-06-14 …
已知三个点,求法向矢量,是不是不同算法会得出不同的向量的?譬如(0,1,0),(3,2,0),(0 2020-07-01 …
0.1/0.001-(475*17/475+3.6*45+0.36*33.75 2020-07-18 …
459*194.93*0.5227.475/3.14进行估算, 2020-07-18 …
0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.7/0.1*0.2*0.4+0 2020-07-26 …
直接写出得数6.9-6=0.9+0.6=1-0.09=0.9+0.1=2.7+2.2=0.2+0.8 2020-11-04 …