![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\text{ a.135 x 345 + 675 : 135 }\)
\(=46575+5\)
\(=46580\)
\(\text{ b.15 400 : 25 : 4 }\)
\(=616:4\)
\(=154\)
\(\text{ c.1224 : 24 + 1416 : 24}\)
\(=\left(1224+1416\right):24\)
\(=2640:24\)
\(=110\)
học tốt
a.135x345+675:135
=46575+5
=46580
b.15400:25:4
=616:4
=154
c.1224:24+1416:24
=(1224+1416):24
=2640:24
=110
k đúng cho mình nha
![](https://rs.olm.vn/images/avt/0.png?1311)
TL :
1) 112 x 5 x 2
= 112 x 10
=1120
2) 2 x 247 x 5
= 247 x 10
= 2470
3) 2 x 4 x 3 x 5
= 12 x 10
= 120
4) 20 x 7 x 5 x 8
= 100 x 56
= 5600
5) 25 x 35 x 4
= 100 x 35
= 3500
6) 47 x 7 + 47 x 3
= 47 x ( 7 + 3 )
= 47 x 10
= 470
7) 5 x 7 x 9 x 2
= 10 x 63
= 630
8) 125 x 9 x 7 x 8
= 1000 x 63
= 63000
9) 4 x 97 x 25
= 100 x 97
= 9700
10) 8 x 9 x 10 ( chắc thế )
= 80 x 9
= 720
11) 240 x 24 + 240 x 24
= 24 x ( 240 + 240 )
= 24 x 480
= 11520
12) 27 x 2 + 27 x 3 + 27 x 5
= 27 x ( 2 + 3 + 5 )
= 27 x 10
= 270
13) 48 x 4 + 48 x 3 + 48 x 2 + 48
= 48 x 4 + 48 x 3 + 48 x 2 + 48 x 1
= 48 x ( 4 + 3 + 2 + 1 )
= 48 x 10
= 480
14) 247 x 36 + 247 x 64
= 247 x ( 36 + 64 )
= 247 x 100
= 24700
15) 76 x 6 + 76 x 4
= 76 x ( 6 + 4 )
= 76 x 10
= 760
16) 249 x 101 - 249
= 249 x 101 - 249 x 1
= 249 x ( 101 - 1 )
= 249 x 100
= 24900
Mong các ban cho tui 10 cái T I C K
~HT~
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =>x=1135:37=1135/37
b: =>3x=165
hay x=55
c: =>x-8=92
hay x=100
\(a,x=1135:37=30\left(dư.27\right)\\ b,x\times3=40755:247=165\\ x=165:3=55\\ c,x-8=57316:623=92\\ x=92+8=100\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(2\)x\(4\)x\(8\)x\(5\)x\(25\)x\(125\)
=(2x5)x(4x25)x(8x125)
=10x100x1000
=1000000
2x4x8x5x25x125 = ( 2 x 5 ) x ( 4 x 25 ) x ( 8 x 125 )
= 10 x 100 x 1000
= 1000000
Chúc bạn học tốt và đạt điểm cao ❤
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 4 500 : 90 : 25 = 50 : 25 = 2
b) 840 : (3 x 4) = 840 : 12 = 70
c) 682 + 96 : 12 = 682 + 8 = 690
d) 2 784 : 24 – 16 = 116 – 16 = 100
![](https://rs.olm.vn/images/avt/0.png?1311)
30240 : x = 42
x = 30240 : 42
x = 720
[ x + 3] x 247 = 40755
x + 3 = 40755 : 247
x + 3 = 165
x = 165 - 3
x = 162
57316 : [ x - 8 ] = 623
x-8 = 57316 : 623
x-8 = 92
x = 92 + 8
x = 100
x x 37 = 1147
x = 1147 : 37
x = 31
30240 : x = 42
x= 30240 : 42
x=720
(x + 3) x 247 = 40755
x + 3 = 40755 : 247
x + 3 = 165
x = 165 - 3
x = 162
57316 : (x - 8 )= 623
x- 8 = 57316 : 623
x- 8 = 92
x = 92 + 8
x = 100
X x 37 = 1147
X = 1147 : 37
X = 31
câu a thì lấy 15400:25 là được.
a) \(15400:x=25\)
\(\Rightarrow x=15400:25\)
\(\Rightarrow x=616\)
b) \(\left(x+3\right):247=675:135\)
\(\Rightarrow\left(x+3\right):247=5\)
\(\Rightarrow x+3=5\times247\)
\(\Rightarrow x+3=1235\)
\(\Rightarrow x=1235-3\)
\(\Rightarrow x=1232\)
c) \(1224:\left(x-8\right)=24\)
\(\Rightarrow\left(x-8\right)=1224:24\)
\(\Rightarrow x-8=51\)
\(\Rightarrow x=51+8\)
\(\Rightarrow x=59\)