递等式计算,能简便的简便计算。
3.68×【1÷(2.1-2.09)】4分之41-3分之5×6+12分之1375+450÷18×25===(5分之4+4分之1)÷3分之7+10分之7(54+13分之9)...
3.68×【1÷(2.1-2.09)】 4分之41-3分之5×6+12分之1 375+450÷18×25
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(5分之4+4分之1)÷3分之7+10分之7 (54+13分之9)÷9 276×7分之2÷27.6
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3.4-8.4×4分之1+1.6÷5分之4 2.9×99 5.87+3.4-0.87+1.6
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0.4×1.25×25×8 17.5-4.25.5.75 0.125×0.25×32
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(6.3-6.3×0.9)÷6.3 9.7÷1.25÷0.8 (20分之7+50分之11+25分之6)÷5分之2
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168.8÷(24.3×2-6.4) 7.25-3又7分之3+3.75-6又7分之4
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0.625×5.8+8分之5×3.2+8分之5
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(5分之4+4分之1)÷3分之7+10分之7 (54+13分之9)÷9 276×7分之2÷27.6
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3.4-8.4×4分之1+1.6÷5分之4 2.9×99 5.87+3.4-0.87+1.6
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0.4×1.25×25×8 17.5-4.25.5.75 0.125×0.25×32
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(6.3-6.3×0.9)÷6.3 9.7÷1.25÷0.8 (20分之7+50分之11+25分之6)÷5分之2
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168.8÷(24.3×2-6.4) 7.25-3又7分之3+3.75-6又7分之4
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0.625×5.8+8分之5×3.2+8分之5
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展开全部
3.68×【1÷(2.1-2.09)】 4分之41-3分之5×6+12分之1 375+450÷18×25
=3.68×(1÷0.01) = 4分之41-10+12分之1 =375+25×25
=3.68×100 = 4分之1+12分之1 =375+625
=368 =3分之1 =1000
(5分之4+4分之1)÷3分之7+10分之7 (54+13分之9)÷9 276×7分之2÷27.6
=20分之21÷3分之7+10分之7 =54÷9+13分之9÷9
=20分之1+10分之7 =6+13分之1
=4分之3 =6又13分之1
3.4-8.4×4分之1+1.6÷5分之4 2.9×99 5.87+3.4-0.87+1.6
=3.4-2.1+1.6÷5分之4 =2.9×100-2.9 =5.87-0.87+(3.4+1.6)
=3.4-2.1+2 =290-2.9 =5+5
=3.3 =287.1 =10
0.4×1.25×25×8 17.5-4.25-5.75 0.125×0.25×32
=(0.4×25)×(1.25×8) = 17.5-(4.25+5.75) =0.125×0.25×4×8
=10×10 =17.5-10 =(0.125×8)+(0.25×4)
=100 =7.5 =1+1
=2
(6.3-6.3×0.9)÷6.3 9.7÷1.25÷0.8 (20分之7+50分之11+25分之6)÷5分之2
=6.3÷6.3-6.3÷6.3×0.9 =9.7÷(1.25×0.8)=(100分之57+25分之6)÷5分之2
=1-0.9 =9.7÷1 =100分之81÷5分之2
=0.1 =9.7 =40分之81
168.8÷(24.3×2-6.4) 7.25-3又7分之3+3.75-6又7分之4
=168.8÷(48.6-6.4) =(7.25+3.75)-(3又7分之3+6又7分之4)
=168.8÷42.2 =11-10
=4 =1
0.625×5.8+8分之5×3.2+8分之5
=8分之5×5.8+8分之5×3.2+8分之5
=8分之5×(5.8+3.2+1)
=6又4分之1
(望采纳,谢谢)
=3.68×(1÷0.01) = 4分之41-10+12分之1 =375+25×25
=3.68×100 = 4分之1+12分之1 =375+625
=368 =3分之1 =1000
(5分之4+4分之1)÷3分之7+10分之7 (54+13分之9)÷9 276×7分之2÷27.6
=20分之21÷3分之7+10分之7 =54÷9+13分之9÷9
=20分之1+10分之7 =6+13分之1
=4分之3 =6又13分之1
3.4-8.4×4分之1+1.6÷5分之4 2.9×99 5.87+3.4-0.87+1.6
=3.4-2.1+1.6÷5分之4 =2.9×100-2.9 =5.87-0.87+(3.4+1.6)
=3.4-2.1+2 =290-2.9 =5+5
=3.3 =287.1 =10
0.4×1.25×25×8 17.5-4.25-5.75 0.125×0.25×32
=(0.4×25)×(1.25×8) = 17.5-(4.25+5.75) =0.125×0.25×4×8
=10×10 =17.5-10 =(0.125×8)+(0.25×4)
=100 =7.5 =1+1
=2
(6.3-6.3×0.9)÷6.3 9.7÷1.25÷0.8 (20分之7+50分之11+25分之6)÷5分之2
=6.3÷6.3-6.3÷6.3×0.9 =9.7÷(1.25×0.8)=(100分之57+25分之6)÷5分之2
=1-0.9 =9.7÷1 =100分之81÷5分之2
=0.1 =9.7 =40分之81
168.8÷(24.3×2-6.4) 7.25-3又7分之3+3.75-6又7分之4
=168.8÷(48.6-6.4) =(7.25+3.75)-(3又7分之3+6又7分之4)
=168.8÷42.2 =11-10
=4 =1
0.625×5.8+8分之5×3.2+8分之5
=8分之5×5.8+8分之5×3.2+8分之5
=8分之5×(5.8+3.2+1)
=6又4分之1
(望采纳,谢谢)
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