1.2÷0.25+1.3×4怎么简便算?(我知道答案,

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1.2÷0.25+1.3×4怎么简便算?(我知道答案,1.2÷0.25+1.3×4怎么简便算?(我知道答案,1.2÷0.25+1.3×4怎么简便算?(我知道答案,1.2÷0.25=1.2×4,所以原式

1.2÷0.25+1.3×4怎么简便算?(我知道答案,
1.2÷0.25+1.3×4怎么简便算?(我知道答案,

1.2÷0.25+1.3×4怎么简便算?(我知道答案,
1.2÷0.25=1.2×4,所以原式=(1.2+1.3)×4=10.

1.2÷0.25+1.3×4
=1.2×4+1.3×4
=(1.2+1.3)×4
=2.5×4
=10

1.2÷0.25+1.3×4
=1.2÷1/4+1.3×4
=1.2×4+1.3×4
=4×(1.2+1.3)
=4×2.5
=10

1.2÷0.25+1.3×4
=1.2×4+1.3×4
=(1.2+1.3)×4
=2.5×4
=10