![](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)
a) x + 789 = 9412
x = 9412 - 789
x = 8623
b) 8025 - x = 4528
x = 8025 - 4528
x = 3534
![](https://rs.olm.vn/images/avt/0.png?1311)
\(364+136+219+181\)
\(=\left(364+136\right)+\left(219+181\right)\)
\(=500+400\)
\(=900\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 98 + 3 + 97 +2
= (98 +2) + ( 97 + 3)
= 100 + 100 = 200
56 + 399 + 1 + 4
= (56 + 4) +( 399 + 1)
= 60 + 400 = 460
b) 364 + 136 + 219 + 181
= (364 + 136) + (219 + 181
= 500 + 400 = 900
178 277 + 123 + 422
= (178 + 422) + (277 + 123)
= 600 + 400 = 1000
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.98+3+97+2\)
\(=\left(98+2\right)+\left(97+3\right)\)
\(=100+100\)
\(=200\)
\(56+399+1+4\)
\(=\left(56+4\right)+\left(399+1\right)\)
\(=60+400\)
\(=460\)
\(b.364+136+219+181\)
\(=\left(364+136\right)+\left(219+181\right)\)
\(=500+400\)
\(=900\)
\(178+277+123+422\)
\(=\left(178+422\right)+\left(277+123\right)\)
\(=600+400\)
\(=1000\)
\(HocTot!!!\)
\(@VR\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
925+146=1071; 1302−78×5=1302−390=912;
31045−12888=18157; 1700−629=1071;
228×4=912; 8080−7256=824;
711:3+587=237+587=824; 56289−38132=18157
![](https://rs.olm.vn/images/avt/0.png?1311)
3x + 181 = 465
3x = 465 - 181
x = 284 : 3
x = \(\frac{284}{3}\)
= 52 nha
=52 nhé okok tk đi bé