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脱式计算.(59+21)×(96÷8)75+240÷20-536×(15-276÷23)88×27+27×12147+147×99420÷35÷2282+41+15975×98234-34-66
题目详情
脱式计算.
(59+21)×(96÷8) | 75+240÷20-5 | 36×(15-276÷23) |
88×27+27×12 | 147+147×99 | 420÷35÷2 |
282+41+159 | 75×98 | 234-34-66 |
▼优质解答
答案和解析
(1)(59+21)×(96÷8)
=80×12
=960;
(2)75+240÷20-5
=75+12-5
=87-5
=82;
(3)36×(15-276÷23)
=36×(15-12)
=36×3
=108;
(4)88×27+27×12
=(88+12)×27
=100×27
=2700;
(5)147+147×99
=147×(1+99)
=147×100
=14700;
(6)420÷35÷2
=420÷(35×2)
=420÷70
=6;
(7)282+41+159
=282+(41+159)
=282+200
=482;
(8)75×98
=75×(100-2)
=75×100-75×2
=7500-150
=7350;
(9)234-34-66
=234-(34+66)
=234-100
=134.
=80×12
=960;
(2)75+240÷20-5
=75+12-5
=87-5
=82;
(3)36×(15-276÷23)
=36×(15-12)
=36×3
=108;
(4)88×27+27×12
=(88+12)×27
=100×27
=2700;
(5)147+147×99
=147×(1+99)
=147×100
=14700;
(6)420÷35÷2
=420÷(35×2)
=420÷70
=6;
(7)282+41+159
=282+(41+159)
=282+200
=482;
(8)75×98
=75×(100-2)
=75×100-75×2
=7500-150
=7350;
(9)234-34-66
=234-(34+66)
=234-100
=134.
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