3: 9/100 79/100
53/1000 17/100
23/60 327/1000
4: ⑴ 8÷19=8/19
⑵ 5÷16=5/16
7÷16=7/16
⑶ 1÷4=1/4
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3: 9/100 79/100
53/1000 17/100
23/60 327/1000
4: ⑴ 8÷19=8/19
⑵ 5÷16=5/16
7÷16=7/16
⑶ 1÷4=1/4
http://m.ksjqmj.com/wunianjidaan/2262.html
推荐访问