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1.3×0.25—0.5X0.25—0.2÷4该怎样简便?
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其他回答
第1个回答 2020-02-01
1.3×0.25-0.5×0.25-0.2÷4
=(1.3-0.5)×0.25-0.05
=0.8×0.25-0.05
=0.25×4×0.2-0.05
=0.2-0.05
=0.15
第2个回答 2020-02-01
1.3×0.25-0.5×0.25-0.2÷4
=1.3×1/4-0.5×1/4-0.2×1/4
=(1.3-0.5-0.2)×1/4
=0.6×1/4
=0.15
相似回答
...
1.3×4
分之1-
0.5×
25%-
0.2÷4
7分之6×15分之13×65分之7
答:
=12.75+0.25-5/17 =13-5/17 =12又12/17 1.3×4分之1-
0.5×
25%-
0.2÷4
=
1.3×0.25
-0.5×0.25-0.2×0.25 =(1.3-0.5-0.2)×0.25 =0.6×0.25 =0.15 7分之6×15分之13×65分之78=156/175 6.48÷{(3.45+4.65)×0.8} =6.48÷8.1÷0.8 =0.8...
几道简算题,速度回答!!!注意要简算。
答:
1.3÷0.25
=1.3
x
4÷(
0.25×4
)=5.2÷1=5.2
0.5
+0.5-0.5+0.5=0.5+(0.5-0.5)+0.5=0.5+0.5=1 0.1×0.1÷0.1×0.1=0.1×(0.1÷0.1)×0.1=0.1x1x0.1=0.01 0.8-0.8+0.8-0.8=0.8-0.8+0.8-0.8=0.8-0.8=0 0.1
×0.2
×0.3...
筒便运算0.3
x0.25
-
0.2÷4
为什么有要乘以0.25
答:
=0.1
×0.25
=0.025 0.3×0.25-
0.2÷4
=0.3÷4-0.2÷4 =(0.3-0.2)÷4 =0.1÷4 =0.025 ===
大家正在搜
2/5X+2=5×42
X×X等于多少
X0
X2
1/x
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