递等式计算,用简便算法.要用乘法运算定律、加法运算定律、除法运算性质、减法运算性质.快,好的重分酬谢!(4.2-0.4×6)÷4== (15300÷600+67.5)×180==10500÷(10500÷25×1.25)==[(5.84-
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递等式计算,用简便算法.要用乘法运算定律、加法运算定律、除法运算性质、减法运算性质.快,好的重分酬谢!(4.2-0.4×6)÷4== (15300÷600+67.5)×180==10500÷(10500÷25×1.25)==[(5.84-
递等式计算,用简便算法.要用乘法运算定律、加法运算定律、除法运算性质、减法运算性质.快,好的重分酬谢!
(4.2-0.4×6)÷4
=
=
(15300÷600+67.5)×180
=
=
10500÷(10500÷25×1.25)
=
=
[(5.84-3.9)÷0.4+0.15] ×0.92
=
=
(2400-480×2.5)÷1.6
=
=
快,决不食言!要用简便算法,实在不行再用四则运算性质,也要算出来,要递等式格式.
递等式计算,用简便算法.要用乘法运算定律、加法运算定律、除法运算性质、减法运算性质.快,好的重分酬谢!(4.2-0.4×6)÷4== (15300÷600+67.5)×180==10500÷(10500÷25×1.25)==[(5.84-
(4.2-0.4×6)÷4
=(4.2-2.4)÷4
=1.8÷4
=0.45
(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
10500÷(10500÷25×1.25)
=10500÷525
=20
[(5.84-3.9)÷0.4+0.15] ×0.92
=[1.94÷0.4+0.15] ×0.92
=5×0.92
=4.6
(2400-480×2.5)÷1.6
=1200÷1.6
=750
(4.2-0.4×6)÷4
=4.2÷4-0.4×6÷4
=0.7-0.6
=0.1
(15300÷600+67.5)×180
=(25.5+67.5)×180
=
10500÷(10500÷25×1.25)
=10500÷10500×25÷1.25
=20
[(5.84-3.9...
全部展开
(4.2-0.4×6)÷4
=4.2÷4-0.4×6÷4
=0.7-0.6
=0.1
(15300÷600+67.5)×180
=(25.5+67.5)×180
=
10500÷(10500÷25×1.25)
=10500÷10500×25÷1.25
=20
[(5.84-3.9)÷0. 4+0.15] ×0.92
=
=
(2400-480×2.5)÷1.6
=
=
收起
1.05-0.6=0.45
0.3*15300-12150=-7560
10500/10500(1.25/25)=0.05
1.94*0.23+0.138=0.5842
1500-750=750
(4.2-0.4×6)÷4
=4.2÷4-0.4×6÷4
=0.7-0.6
=0.1
(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
10500÷(10500÷25×1.25)
=
=
[(5.84-...
全部展开
(4.2-0.4×6)÷4
=4.2÷4-0.4×6÷4
=0.7-0.6
=0.1
(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
10500÷(10500÷25×1.25)
=
=
[(5.84-3.9)÷0. 4+0.15] ×0.92
=[1.94÷0. 4+0.15] ×0.92
=5×0.92
=4.6
(2400-480×2.5)÷1.6
=1200÷1.6
=750
收起
(4.2-0.4×6)÷4
=(4.2-2.4)÷4
=4.2÷4-2.4÷4
=1.05-0.6
=0.45
(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
10500÷(10500÷25×1.25)
=10500÷10500×25÷1.25
=20<...
全部展开
(4.2-0.4×6)÷4
=(4.2-2.4)÷4
=4.2÷4-2.4÷4
=1.05-0.6
=0.45
(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
10500÷(10500÷25×1.25)
=10500÷10500×25÷1.25
=20
[(5.84-3.9)÷0. 4+0.15] ×0.92
=[1.94÷0. 4+0.15] ×0.92
=5×0.92
=4.6
(2400-480×2.5)÷1.6
=(2400-1200)÷1.6
=2400÷1.6-1200÷1.6
=1500-750
=750
收起
1.05-0.6=0.45
0.3*15300-12150=-7560
10500/10500(1.25/25)=0.05
1.94*0.23+0.138=0.5842
1500-750=750
1.(4.2-0.4×64
=[4.2-2.4]÷4
=1.8÷4
=0.45
2.(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
3.10500÷(10500÷25×1.25)
=10500÷10500×25...
全部展开
1.(4.2-0.4×64
=[4.2-2.4]÷4
=1.8÷4
=0.45
2.(15300÷600+67.5)×180
=(25.5+67.5)×180
=93×180
=16740
3.10500÷(10500÷25×1.25)
=10500÷10500×25÷1.25
=20
4.[(5.84-3.9)÷0. 4+0.15] ×0.92
=(1.94÷0.4+0.15)×0.92
=5×0.92
=4.6
5.(2400-480×2.5)÷1.6
=(2400-1200)÷1.6
=1200÷1.6
=750
收起
(4.2-0.4×6)÷4
=4.2÷4-0.4×6÷4
=0.7-0.6
=0.1