Bài 1:
a: \(-452-\left(-67+75-452\right)\)
\(=-452+67-75+452\)
\(=\left(-452+452\right)+\left(67-75\right)\)
=-8+0
=-8
b: \(61\cdot64+32\left(-7\right)+15\left(-32\right)\)
\(=61\cdot64+32\left(-15-7\right)\)
\(=32\left(2\cdot61-22\right)=32\cdot100=3200\)
c: \(\left(-3\right)^2\cdot125\cdot11\cdot\left(-2\right)^3\)
\(=9\cdot125\cdot11\cdot\left(-8\right)\)
\(=\left(-8\cdot125\right)\cdot\left(9\cdot11\right)\)
\(=-99\cdot1000=-99000\)
d: \(2353-\left(473+2153\right)+\left(-55+373\right)\)
\(=2353-473-2153-55+373\)
\(=\left(2353-2153\right)+\left(373-473\right)-55\)
\(=200-100-55=45\)
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