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44.4*0.2加22.2*0.1简算怎么算摆脱各位学霸了
解:
44.4*0.2加22.2*0.1
=22.2x2x0.2+22.2x0.1
=22.2x(0.4+0.1)
=22.2x0.5
=11.1
解:
44.4*0.2加22.2*0.1
=22.2x2x0.2+22.2x0.1
=22.2x(0.4+0.1)
=22.2x0.5
=11.1
更多追问追答
追问
为什么是0.4加0.1呢
追答
2*0.2=0.4
44.4=22.2*2
44.4*0.2
=22.2 * 2 * 0.2
=22.2 *0.4
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