计算四则混合运算(1/3+1/2+1/4)×12 378-(178+98) 8/5÷2.5-1.2×1/45/3×1/4÷5/2+17/4 144×99+143 2/3÷4/5+8×50%
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![计算四则混合运算(1/3+1/2+1/4)×12 378-(178+98) 8/5÷2.5-1.2×1/45/3×1/4÷5/2+17/4 144×99+143 2/3÷4/5+8×50%](/uploads/image/z/12893058-18-8.jpg?t=%E8%AE%A1%E7%AE%97%E5%9B%9B%E5%88%99%E6%B7%B7%E5%90%88%E8%BF%90%E7%AE%97%EF%BC%881%2F3%2B1%2F2%2B1%2F4%EF%BC%89%C3%9712+378-%EF%BC%88178%2B98%EF%BC%89+8%2F5%C3%B72.5-1.2%C3%971%2F45%2F3%C3%971%2F4%C3%B75%2F2%2B17%2F4+144%C3%9799%2B143+2%2F3%C3%B74%2F5%2B8%C3%9750%EF%BC%85)
计算四则混合运算(1/3+1/2+1/4)×12 378-(178+98) 8/5÷2.5-1.2×1/45/3×1/4÷5/2+17/4 144×99+143 2/3÷4/5+8×50%
计算四则混合运算
(1/3+1/2+1/4)×12 378-(178+98) 8/5÷2.5-1.2×1/4
5/3×1/4÷5/2+17/4 144×99+143 2/3÷4/5+8×50%
计算四则混合运算(1/3+1/2+1/4)×12 378-(178+98) 8/5÷2.5-1.2×1/45/3×1/4÷5/2+17/4 144×99+143 2/3÷4/5+8×50%
1/3+1/2+1/4)×12
=1/3*12+1/2*12+1/4*12
=4+6+3=13
378-(178+98)
=378-178-98
=200-98
=102
8/5÷2.5-1.2×1/4
=0.64-0.3
=0.34
5/3×1/4÷5/2+17/4
=5/3x1/4x2/5+17/4
=1/6+17/4
=53/12
144×99+143
=144x99+144-1
=(99+1)x144-1
=100x144-1
=14400-1
=14399
2/3÷4/5+8×50%
=5/6+4
=4又6分之5
孩子 有括号先算括号,然后乘除,最后加减。。
=4+6+3=13
=200-98=102
=16/25-0.3=0.64-0.3=0.34
=5/12/(5/2)+17/4=1/6+17/4=(2+51)/12=53/12
=(143+1)*99+143=143*99+99+143=143*(99+1)+99=14399
=5/6+4=4又6分之5