60+30=45+20=60+30=45+20=90-40=76-10=90-40=76-10=56+8=80-8=56+8=80-8=67-7=3+45=67-7=3+45=35+5=68-7=35+5=68-7=37+8=23+6=37+8=23+6=906550666472604840614529⑴⑴60+30=9060+30=90⑵⑵45+20=6545+20=65⑶⑶90-40=5090-40=50⑷⑷76-10=6676-10=66⑸⑸56+8=6456+8=64⑹⑹80-8=7280-8=72⑺⑺67-7=6067-7=60...

时间:2024-11-18 16:44栏目:幼儿/小学教育