5.6×3又4分之3+4又5分之2×3.75的简便计算。这能简便吗?能的话怎么简便
5.6×3又4分之3+4又5分之2×3.75的简便计算。这能简便吗?能的话怎么简便
5.6×3又4分之3+4又5分之2×3.75
=(5.6+4.4)×3.75
=10×3.75
=37.5
7.2-(3又4分之3-4 2/10)简便计算
7.2-(3又4分之3-4又2/10)
=7.2-3.75+4.2
=7.2+4.2-3.75
=11.4-3.75
=7.65
121÷1又4分之1-21×5分之4简便计算
=121×4/5-21×4/5
=(121-21)×4/5
=100×4/5
=80,
12×2.75+87×2.75+2又4分之3简便计算
12×2.75+87×2.75+2又4分之3简便计算
=2.75×(12+87+1)
=2.75×100
=275
4分之3*(124一3分之4用简便计算
3/4 x(124 - 4/3)
=3/4 x 124 - 3/4 x 4/3
=93-1
=92
8又5分之4÷[87+0.625××(2又4分之3-1.15)] 过程。能简便就简便
8又5分之4÷[87+0.625××(2又4分之3-1.15)]
=8.8÷[87+0.625×(2.75-1.15)]
=8.8÷[87+0.625×1.6]
=8.8÷[87+1]
=8.8÷88
=0.1
105×0.75-5×4分之3简便计算
105×0.75-5×4分之3
=(105-5)×0.75
=100×0.75
=75
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1又4分之3-(0.75+3分之1),简便计算,怎么做?
7/3-(0.75+1/3)=7/3-3/4-1/3=2-3/4=1又1/4
4.75*4.75+4又4分之3+4又4分之3*4.25的简便运算
4.75*4.75+4又4分之3+4又4分之3*4.25
=4.75*4.75+4.75+4.75*4.25
=4.75*(4.75+1+4.25)
=4.75*10
=47.5
简便计算 975×0.25﹢9又4分之3×76-9.75
975×0.25+9又4分之3×76-9.75
=9.75×100×0.25+9.75×76-9.75
=9.75×(25+76-1)
=975