
12.5+4.6+0.75的简便计算怎么写?
1个回答
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12.5+4.6+0.75
=12.5+4.6+0+0.75
=12+0.5+4.6+0+0.75
=12+0.5+4+0.6+0+0.75
=(12+4)+(0.5+0.6+0+0.75)
=16+1.85
=17.85
=12.5+4.6+0+0.75
=12+0.5+4.6+0+0.75
=12+0.5+4+0.6+0+0.75
=(12+4)+(0.5+0.6+0+0.75)
=16+1.85
=17.85
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