早教吧作业答案频道 -->数学-->
计算下面各题,能简算的要简算.467-[(167+45)+55]135×994500÷(150-40×3)423-66-23-34102×43-2×431280÷8÷16376+28+172+124125×5625×4÷25×4
题目详情
计算下面各题,能简算的要简算.
467-[(167+45)+55] | 135×99 | 4500÷(150-40×3) |
423-66-23-34 | 102×43-2×43 | 1280÷8÷16 |
376+28+172+124 | 125×56 | 25×4÷25×4 |
▼优质解答
答案和解析
(1)467-[(167+45)+55]
=467-[212+55]
=467-267
=200
(2)135×99
=135×(100-1)
=135×100-135
=13365
(3)4500÷(150-40×3)
=4500÷(150-120)
=4500÷30
=150
(4)423-66-23-34
=(423-23)-(66+34)
=400-100
=300
(5)102×43-2×43
=(102-2)×43
=100×43
=4300
(6)1280÷8÷16
=1280÷(8×16)
=1280÷128
=10
(7)376+28+172+124
=(376+124)+(28+172)
=500+200
=700
(8)125×56
=125×8×7
=1000×7
=7000
(9)25×4÷25×4
=100÷25×4
=4×4
=16
=467-[212+55]
=467-267
=200
(2)135×99
=135×(100-1)
=135×100-135
=13365
(3)4500÷(150-40×3)
=4500÷(150-120)
=4500÷30
=150
(4)423-66-23-34
=(423-23)-(66+34)
=400-100
=300
(5)102×43-2×43
=(102-2)×43
=100×43
=4300
(6)1280÷8÷16
=1280÷(8×16)
=1280÷128
=10
(7)376+28+172+124
=(376+124)+(28+172)
=500+200
=700
(8)125×56
=125×8×7
=1000×7
=7000
(9)25×4÷25×4
=100÷25×4
=4×4
=16
看了 计算下面各题,能简算的要简算...的网友还看了以下:
定义新运算3.5(3)=10,7(8)=23.5,0.5(0.2)=0.75,求f(x)的规律5. 2020-04-07 …
小数指数的计算问题?不太清楚这个,是不是这样:4^1.5=4^(3/2)=[4^(1/2)]^3= 2020-04-27 …
几道算术题和操作题,不是很难,算术题要求最好简便!(1)1.6x3/4-2/5除1.2(2)5/9 2020-05-13 …
都是分数的题3又1/2+5又1/41/2+1/3-1/63又1/4-2又3/5+5又3/4-3又2 2020-07-17 …
直接写得数.1.2+0.3=4+0.6=12.9-5=12+3.5=0.9+0.7=0.6+1.4 2020-07-19 …
3.求下列各比的比值.4.化简下列各比2.8:421/4:1/36.5:1.32/5:4/75.递 2020-07-19 …
算的过程也要写下来,不要直接写答案(8.)5/x=4/3x1(9)x+3/4=x/5(10)10x 2020-07-21 …
直接写出得数.0.6×0.8=2.4×3=3.9÷0.3=5.6÷8=0.63÷0.7=0.45÷3 2020-11-19 …
直接写出得数6.3÷9=4.2÷2.1=8-2.6=4×1.5=0.32+0.8=1.7+0.25= 2020-11-19 …
16道……最后再补到35分一定要约到最简化……(1)-1/3+15.5+(-2/3)(2)4.7-3 2020-11-20 …