()里填上什么数呢?你能发现规律吗?⑴2,4,6,(),(),12,14⑵1,3,5,7,(),(),13⑶1,5,9,13,()⑷30,25,20,15,(),().下面的()里填上什么数呢?你能发现规律吗?⑴2,4,6,(),(),12,14⑵1,3,5,7,(),(),13⑶1,5,9,13,()⑷30,25,20,15,(),()⑴2,4,6,(),(),12,14+2+2+2+2+2+——数列寻找数的规律:越来越大——加法越来越小——,7,11,17,(25)15,14,12,9,5,(0)+2+4+8+6-5-4-3-2-——,然后在括号里填数。⑴1,5,1,10,1,15,(),()⑵10,18,11,17,12,16,(),()⑶20,1,19,3,18,5,(),()方法:跳一跳找规律.
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