0.485乘102减48.5等于? (简便计算)好期待答案的~~~

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0.485乘102减48.5等于?    (简便计算)好期待答案的~~~
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0.485乘102减48.5等于? (简便计算)好期待答案的~~~
0.485乘102减48.5等于? (简便计算)
好期待答案的~~~

0.485乘102减48.5等于? (简便计算)好期待答案的~~~
0.485*102-48.5
=48.5*1.02-48.5
=48.5*(1.02-1)
=48.5*0.02
=0.97

0.97
顺便给你讲个秘密
打开你的电脑 按左下方开始 里面有个附件
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0.485×102-48.5
=48.5×1.02-48.5
=48.5×(1.02-1)
=48.5× 0.02
=0.97

0.485*102-48.5=0.485*(100+2)-48.5=0.485*100
+0.485*2-48.5=0.97

0.485*102-48.5
=0.485*(100+2)-48.5
=48.5+0.485*2-48.5
=0.485*2
=0.97