4.\(5^5\)-32:\(2^4\)-452-(-67+75-452)
=4.25-32:16-452-67-75+452
\(4\cdot5^4-32:2^4-452-\left(-67+75-452\right)\)
\(=4\cdot625-32:16-452+67-75+452\)
\(=2500-2+67-75\)
=2500-2-8
=2500-10
=2490
4.\(5^5\)-32:\(2^4\)-452-(-67+75-452)
=4.25-32:16-452-67-75+452
\(4\cdot5^4-32:2^4-452-\left(-67+75-452\right)\)
\(=4\cdot625-32:16-452+67-75+452\)
\(=2500-2+67-75\)
=2500-2-8
=2500-10
=2490
b) (-57).(67 - 34) - 67.(34 - 57)
tính :
(- 57).(67- 34) - 67 . (34 - 57)
Tính 32(132-247)-132(32-247)
Tính :
a) \(\left(37-17\right).\left(-5\right)+23.\left(-13-17\right)\)
b) \(\left(-57\right)\left(67-34\right)\left(34-57\right)\)
Cho de bai
a)(37 - 17) . (-5) + 23 . (-13 - 17)
Lam giup min voi
50[( 2 . 32 2 - 8 ): 2 +30 ]-215
tìm n thuộc N: 32-7n chia hết n
52. 63 + 52.37 - 250
b. 390- { 400 :[ 32.52 – (200 - 7. 52)]
c. (-37). 85 + 37.(-5) - 370
c. (-72): 32 – (- 18).2
Thay một thừa số bằng tổng để tính :
a) \(-57.11\)
b) \(75.\left(-21\right)\)