0.25*0.3+0.7/4的简便运算
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解法1:
0.25×0.3+0.7/4
=0.3/4+0.7/4
=(0.3+0.7)/4
=1/4
=0.25
解法2:
0.25×0.3+0.7/4
=(1/4)×0.3+(1/4)×0.7
=(1/4)×(0.3+0.7)
=1/4
=0.25
0.25×0.3+0.7/4
=0.3/4+0.7/4
=(0.3+0.7)/4
=1/4
=0.25
解法2:
0.25×0.3+0.7/4
=(1/4)×0.3+(1/4)×0.7
=(1/4)×(0.3+0.7)
=1/4
=0.25
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