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计算下面各题,能简便的用简便方法计算.440-200÷4×5960÷(720-20×33)640÷[360÷(19+71)]75×36+75×64125×25×1685×101-85
题目详情
计算下面各题,能简便的用简便方法计算.
440-200÷4×5 | 960÷(720-20×33) | 640÷[360÷(19+71)] |
75×36+75×64 | 125×25×16 | 85×101-85 |
▼优质解答
答案和解析
(1)440-200÷4×5
=440-50×5
=440-250
=190
(2)960÷(720-20×33)
=960÷(720-660)
=960÷60
=16
(3)640÷[360÷(19+71)]
=640÷[360÷90]
=640÷4
=160
(4)75×36+75×64
=75×(36+64)
=75×100
=7500
(5)125×25×16
=125×25×2×8
=(125×8)×(25×2)
=1000×50
=50000
(6)85×101-85
=85×(101-1)
=85×100
=8500
=440-50×5
=440-250
=190
(2)960÷(720-20×33)
=960÷(720-660)
=960÷60
=16
(3)640÷[360÷(19+71)]
=640÷[360÷90]
=640÷4
=160
(4)75×36+75×64
=75×(36+64)
=75×100
=7500
(5)125×25×16
=125×25×2×8
=(125×8)×(25×2)
=1000×50
=50000
(6)85×101-85
=85×(101-1)
=85×100
=8500
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