2694| 19
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请同学们做一下这道题,写一写思路。 |
发表于 11-3-19 11:03
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AAAAAAA
2/12=6 66/12=5.5 330/66=5 X/330=4.5 X=1485 | |
发表于 11-3-19 11:08
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选A,分别乘以6.5, 6, 5.5, 5 ,4.5. 330*4.5=1485
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发表于 11-3-19 20:55
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