简便运算8.6*9.9+0.86 80
简便运算8.6×9.9+0.86(9/5+0.375)×(4÷7/4-7/4÷4)(4.6×6又50/19+4又5/3x3.62)-42(1.48+1又6/5+2.52)...
简便运算8.6×9.9+0.86
(9/5+0.375)×(4÷7/4-7/4÷4)
(4.6×6又50/19+4又5/3x3.62)-42
(1.48+1又6/5+2.52)÷6又4/1 展开
(9/5+0.375)×(4÷7/4-7/4÷4)
(4.6×6又50/19+4又5/3x3.62)-42
(1.48+1又6/5+2.52)÷6又4/1 展开
4个回答
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简便运算
9分之5在百度写作5/9
8.6×9.9+0.86
=0.86x10x9.9+0.86
=0.86x(99+1)
=0.86x100
=86
(5/9+0.375)×(4÷4/7-4/7÷4)
=(5/9+3/8)x(7-1/7)
=(40/72+27/72)x48/7
=67/72x48/7
=134/21
(4.6×6又50/19+4又5/3x3.62)-42
=(4.6x6.38+4.6x3.62)-42
=4.6x(6.38+3.62)-42
=4.6x10-42
=46-42
=4
(1.48+1又5/6+2.52)÷6又1/4
=(1.48+2.52+11/6)÷25/4
=(4+11/6)÷25/4
=35/6÷25/4
=14/15
9分之5在百度写作5/9
8.6×9.9+0.86
=0.86x10x9.9+0.86
=0.86x(99+1)
=0.86x100
=86
(5/9+0.375)×(4÷4/7-4/7÷4)
=(5/9+3/8)x(7-1/7)
=(40/72+27/72)x48/7
=67/72x48/7
=134/21
(4.6×6又50/19+4又5/3x3.62)-42
=(4.6x6.38+4.6x3.62)-42
=4.6x(6.38+3.62)-42
=4.6x10-42
=46-42
=4
(1.48+1又5/6+2.52)÷6又1/4
=(1.48+2.52+11/6)÷25/4
=(4+11/6)÷25/4
=35/6÷25/4
=14/15
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8.6×9.9+0.86
=8.6(9.9+0.1)=86
(9/5+0.375)×(4÷7/4-7/4÷4)
= (9/5+0.375)×0
= 0
(4.6×6又50/19+4又5/3x3.62)-42
=(4.6*6+4.6*19/50+4*3.62+3.62*3/5)-42
= (27.6+87.4/50+14.48+10.86/5-42
=(87.4+108.6)/50+0.8
=118/25
(1.48+1又6/5+2.52)÷6又4/1
=(4+11/5)*4/25
=144/125
=8.6(9.9+0.1)=86
(9/5+0.375)×(4÷7/4-7/4÷4)
= (9/5+0.375)×0
= 0
(4.6×6又50/19+4又5/3x3.62)-42
=(4.6*6+4.6*19/50+4*3.62+3.62*3/5)-42
= (27.6+87.4/50+14.48+10.86/5-42
=(87.4+108.6)/50+0.8
=118/25
(1.48+1又6/5+2.52)÷6又4/1
=(4+11/5)*4/25
=144/125
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1. 8.6×9.9+8.6×0.1
=8.6×(9.9+0.1)
=8.6×10
=86
=8.6×(9.9+0.1)
=8.6×10
=86
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8.6*9.9+0.86=0.86*99+0.86=0.86*100=86
然后自己推吧……重要的是你要掌握方法,而不是别人给你写出答案。
然后自己推吧……重要的是你要掌握方法,而不是别人给你写出答案。
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