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5道简便运算题 能简便的就简便计算 要有算式与题目 不要只有答案!好的加分
(1)(3/4÷3/5+1/4)×6/13(2)35÷(7/8×(1-2/7))(3)(6-3又3/5×2/3)÷3又3/5(4)6.15÷2又1/2-1/3×(1/20...
(1)(3/4÷3/5+1/4)×6/13
(2)35÷(7/8×(1-2/7))
(3)(6-3又3/5×2/3)÷3又3/5
(4)6.15÷2又1/2-1/3×(1/20+4.36)
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
看得懂来 能简便的就简便计算 要有题目与算式不要只有答案 展开
(2)35÷(7/8×(1-2/7))
(3)(6-3又3/5×2/3)÷3又3/5
(4)6.15÷2又1/2-1/3×(1/20+4.36)
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
看得懂来 能简便的就简便计算 要有题目与算式不要只有答案 展开
7个回答
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解:
(1)(3/4÷3/5+1/4)×6/13
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
=11.25
(1)(3/4÷3/5+1/4)×6/13
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
=11.25
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1.(3/4*5/3+1/4)*6/13
=(5/4+1/4)*6/13
=3/2*6/13
=9/13
2.35/(7/8*5/7)
=35/(5/8)
=56
3.(6-3又3/5×2/3)÷3又3/5
=(6-18/5*2/3)*5/18
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=123/20*2/5-1/3*(5/100+436/100)
=246/100-1/3*441/100
=(246-147)/100
=99%
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(3/2-3/8)÷(1/25*5/2)
=9/8÷(1/10)
=90/8
=45/4
=11.25
=(5/4+1/4)*6/13
=3/2*6/13
=9/13
2.35/(7/8*5/7)
=35/(5/8)
=56
3.(6-3又3/5×2/3)÷3又3/5
=(6-18/5*2/3)*5/18
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=123/20*2/5-1/3*(5/100+436/100)
=246/100-1/3*441/100
=(246-147)/100
=99%
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(3/2-3/8)÷(1/25*5/2)
=9/8÷(1/10)
=90/8
=45/4
=11.25
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(1)(3/4÷3/5+1/4)×6/13
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
=11.25
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
=11.25
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.15÷2又1/3)÷3又3/3+1/7))
=35÷(7/10)
=1:
(1)(3/4÷3/.375)÷(1/8×(1-2/5×2/.15×2/5
=6×5/13
=9/3×(1/.97
(5)(1又1/20+4;13
=(3/3-2/18-2/5+1/3
=1
(4)6;60-436/.46-1/2-1/25×(2/8×5/4×6/60-4.36÷3
=2;300
=2;5
=56
(3)(6-3又3/5+2.1))
=(1;13
(2)35÷(7/13
=6/25×25/5-1/4)×6/4)×6/3
=5/.5-0.375)
÷(1/4×*5/.36)
=6.125×10
=11;2-0;7)
=35×8/
=35÷(7/10)
=1:
(1)(3/4÷3/.375)÷(1/8×(1-2/5×2/.15×2/5
=6×5/13
=9/3×(1/.97
(5)(1又1/20+4;13
=(3/3-2/18-2/5+1/3
=1
(4)6;60-436/.46-1/2-1/25×(2/8×5/4×6/60-4.36÷3
=2;300
=2;5
=56
(3)(6-3又3/5+2.1))
=(1;13
(2)35÷(7/13
=6/25×25/5-1/4)×6/4)×6/3
=5/.5-0.375)
÷(1/4×*5/.36)
=6.125×10
=11;2-0;7)
=35×8/
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解:
(1)(3/4÷3/5+1/4)×6/13
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
好了,看得懂吗
(1)(3/4÷3/5+1/4)×6/13
=(3/4×*5/3+1/4)×6/13
=6/4×6/13
=9/13
(2)35÷(7/8×(1-2/7))
=35÷(7/8×5/7)
=35×8/5
=56
(3)(6-3又3/5×2/3)÷3又3/5
=6×5/18-2/3
=5/3-2/3
=1
(4)6.15÷2又1/2-1/3×(1/20+4.36)
=6.15×2/5-1/60-4.36÷3
=2.46-1/60-436/300
=2.97
(5)(1又1/2-0.375)÷(1/25×(2/5+2.1))
=(1.5-0.375) ÷(1/25×25/10)
=1.125×10
好了,看得懂吗
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