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计算下面各题,能简算的要简算.82×99+8228×25×8450-(175+23+25)(120-80÷16)×20.

题目详情
计算下面各题,能简算的要简算.
82×99+82 28×25×8
450-(175+23+25) (120-80÷16)×20.
▼优质解答
答案和解析
(1)82×99+82
=82×(99+1)
=82×100
=8200

(2)28×25×8
=28×25×4×2
=28×2×(25×4)
=56×100
=5600

(3)450-(175+23+25)
=450-(175+25+23)
=450-(200+23)
=450-223
=227

(4)(120-80÷16)×20
=(120-5)×20
=120×20-5×20
=2400-100
=2300