a) \(15+\left(-24\right)\)
\(=15-24\)
\(=-9\)
b) \(\left(-135\right)-\left(-35\right)\)
\(=-135+35\)
\(=-100\)
c) \(3-\left(-15\right)\)
\(=3+15\)
\(=18\)
d) \(\left(45-3756\right)+3756\)
\(=45-3756+3756\)
\(=45\)
e) \(-2023-\left(2022-2023\right)\)
\(=-2023-2022+2023\)
\(=-2022\)
f) \(\left(-17\right)+\left(-23\right)\)
\(=-17-23\)
\(=-40\)
g) \(38-50\)
\(=-12\)
h) \(-6-15\)
\(=-21\)
k) \(-75-\left(-80\right)\)
\(=-75+80\)
\(=5\)
Đúng 2
Bình luận (0)
