1.计算下面各题,能简便计算的要简便计算 125+675÷25×18 13.2-(3.2-2.4-0.45) 4.5×0
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1.计算下面各题,能简便计算的要简便计算 125+675÷25×18 13.2-(3.2-2.4-0.45) 4.5×0.5+5.5÷2 3.2×25
1.计算下面各题,能简便计算的要简便计算
125+675÷25×18
13.2-(3.2-2.4-0.45) 4.5×0.5+5.5÷2 3.2×25×1.25
8分之3×7分之15+8分之15×7分之5 1.25÷4×8÷4分之1
1.计算下面各题,能简便计算的要简便计算
125+675÷25×18
13.2-(3.2-2.4-0.45) 4.5×0.5+5.5÷2 3.2×25×1.25
8分之3×7分之15+8分之15×7分之5 1.25÷4×8÷4分之1
![1.计算下面各题,能简便计算的要简便计算 125+675÷25×18 13.2-(3.2-2.4-0.45) 4.5×0](/uploads/image/z/15541546-58-6.jpg?t=1.%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E9%A2%98%2C%E8%83%BD%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E7%9A%84%E8%A6%81%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97+125%2B675%C3%B725%C3%9718+13.2-%EF%BC%883.2-2.4-0.45%29+4.5%C3%970)
125+675÷25×18
=125+(625 +50)/25*18
=125+(25+2)18
=125+450+36
=611
13.2-(3.2-2.4-0.45)
=13.2-3.2+2.4+0.45
=12.85
4.5×0.5+5.5÷2
=0.5*(4.5+5.5)
=5
3.2×25×1.25
=4*25*0.8*1.25
=100*1
=100
8分之3×7分之15+8分之15×7分之5
=3/8*7/15+15/8*5/7
=7/40+75/56
=431/280
1.25÷4×8÷4分之1
=5/(4/4)*8*4
=10
=125+(625 +50)/25*18
=125+(25+2)18
=125+450+36
=611
13.2-(3.2-2.4-0.45)
=13.2-3.2+2.4+0.45
=12.85
4.5×0.5+5.5÷2
=0.5*(4.5+5.5)
=5
3.2×25×1.25
=4*25*0.8*1.25
=100*1
=100
8分之3×7分之15+8分之15×7分之5
=3/8*7/15+15/8*5/7
=7/40+75/56
=431/280
1.25÷4×8÷4分之1
=5/(4/4)*8*4
=10