i, \(-25-\left(-64\right)-75+36\)
\(=-25+64-75+36\)
\(=39-75+36\)
\(=-36+36\)
\(=0\)
k, \(\left(15-20\right)+145\)
\(=-5+145\)
\(=140\)
i, -25-(-64)-75+36=0
k, (15-20)+145=140
:))
k giùm:>
- 25 - ( - 64 ) - 75 + 36
= \(-25+64-75+36\)
\(=\left(64+36\right)-\left(25+75\right)\)
\(=100-100\)
\(=0\)
\(\left(15-20\right)+145\)
\(=15-20+145\)
\(=145+15-20\)
\(=160-20\)
\(=140\)
i, -25 - (-64) - 75 + 36
= -25 + 64 - 75 + 36
= 39 - 75 + 36
= 39 + (-75) + 36
= (-36) + 36
= 0
k, (15-20) + 145
= (-5) + 145
= 140