![](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)
[(-18) + (-7)] -15 = (-25) -15
= - ( 25 + 15 )
= -40
(-219) - (229) + 12.5 = (-219) - (+229) + 60
= + ( 219 + 229 ) + 60
= 10 + 60
= 70
![](https://rs.olm.vn/images/avt/0.png?1311)
a) (5^2+1)-9.3= 26-27=-1
b) 80 - (4.5^2-3.2^3)=80-(100-24)=4
c) [(-18)+(-7)]-15=-25-15=-40
d) (-219)-(-229)+12.5=10+12.5=22.5
![](https://rs.olm.vn/images/avt/0.png?1311)
a) (52 + 1) - 9.3
= 26 - 9.3
= 16.7
b) 80 - (4.52 - 3.23)
= 80 - (20.25 - 32.768)
= 80 - (-12.518)
= 92.518
c)[(-18) + (-7)] -15
= -25 - 15
= -40
d) (-219) - (-229) + 12.5
= 10 + 12.5
= 22.5
Tick cho mik nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
- (-229) + (-219) – 401 + 12 = (229 – 219) –( 401 – 12) = 10 – 389 = -379
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.\left[\left(-8\right)+\left(-7\right)\right]+\left(-10\right)=\left(-15\right)+\left(-10\right)=-25\)
\(b.555-\left(-333\right)-100-80=\left(555+333\right)-\left(100+80\right)=888-180=708\)
\(c.-\left(-229\right)+\left(-219\right)-401+12=\left(229-219\right)-\left(401-12\right)=10-389=-379\)
\(d.300-\left(-200\right)-\left(-120\right)+1=\left(300+200\right)+\left(120+1\right)=500+121=621\)
= ( - 219 ) + 229 + 60
= 10 + 60
= 70
(-219) -(-219) + 12. 5
= (-219) + 219 + 12. 5
= 0 + 60
= 60
~ hok tốt ~