Question

（1.25+2.5）x4怎样简便计算

Answer 1

（1.25+2.5）×4
＝1.25×4+2.5×4
＝5+10
＝15
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Answer 2

（1.25+2.5）x4怎样简便计算
=1.25x4+2.5x4
=5+10
=15

Answer 3

（1.25+2.5）x4
=1.25x4+2.5x4
=5+10
=15

Answer 4

（1.25+2.5）x4
=1.25×4+2.5x4
=5+10
=15