递等式计算,能简便要简便
12000÷(120-40×2)+20
=12000÷(120-80)+20
=12000÷40+20
=300+20
=320
25×11×24
=(25×4)×(11×6)
=100×66
=6600
101×99-99
=(101-1)×99
=100×99
=9900
11000÷125×8
=(11000×8)÷(125×8)×8
=88000÷1000×8
=88×8
=704
(54×21+45×21)÷33
=(54+45)×21÷33
=99×21÷33
=(99÷33)×21
=3×21
=63
335-287+265-113
=(335+265)-(287+113)
=600-400
=200
6分之5+15分之4
=30分之25+30分之8
=30分之33
=10分之11
=1又10分之1
=6.1×(1+0.01)
=6.1×1+6.1×0.01
=6.1+0.061
=6.161
6.1×1.01
=6.1×(1+0.01)
=6.1×1+6.1×0.01
=6.1+0.061
=6.161
你好,本题已解答,如果满意
请点右下角“采纳答案”。
解:采用分配律,
原式=6.1x1.01
=6.1x(1+0.01)
=6.1x1+6.1x0.01
=6.1+0.061
=6.161
6.1x1.01
=6.1x1+6.1x0.01
=6.1+0.061
=6.161
6.1x1.01
=6.1+6.1x0.01
=6.1+0.061
=6.161
用递等式计算,能简算的要用简便方法计算?
=12.2.,5,用递等式计算,能简算的要用简便方法计算 5.8-2.29+13.7 7.5+1.18+2.5+4.82 50-6.85-3.15 4.18+17.22+11.02 10-6.7-1.35 17.58-10.1+4.72.
递等式计算,能简便计算的要简便计算?
135×3-3×(127+7×5-27)=135×3-3×(127+35-27)=135×3-3×(127-27+35)=135×3-3×135 =0 【
递等式计算(能简便的要简便计算)?
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原式=336
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1.01÷0.125 =(1.01×8)÷(0.125×8)=8.08÷1 =8.08 1.62×4.8÷1.6 =1.62×(4.8÷1.6)=1.62×3 =4.86
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用递等式算式能用简便运算要用简便运算280+120÷4×58
在四则混合运算的算式中,按照运算顺序把计算过程依次用等式表示出来,这样的等式叫做递等式。280+120÷4×58 =280+30x58 =280+1740 =2020。
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