2.25×1.5+2.225×5简便计算怎么写？
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2.25×1.5+2.225×5
=2.25×1.5+（0.225+2）×5
=2.25×1.5+0.225x5+2×5
=2.25×1.5+2.25x0.5+10
=2.25x（1.5-0.5）+10
=2.25+10
=12.25
=2.25×1.5+（0.225+2）×5
=2.25×1.5+0.225x5+2×5
=2.25×1.5+2.25x0.5+10
=2.25x（1.5-0.5）+10
=2.25+10
=12.25
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2.25×1.5+2.225×5
=0.225×15+2.225×5
=0.225×10+0.225×5+2.225×5
=2.25+(0.225+2.225)×5
=2.25+2.45×5
=2.25+12.25
=14.5
=0.225×15+2.225×5
=0.225×10+0.225×5+2.225×5
=2.25+(0.225+2.225)×5
=2.25+2.45×5
=2.25+12.25
=14.5
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2.25×1.5+2.225×5=5×（2.25×0.3+2.225）=5×（0.675+2.225）=5×2.9=14.5
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