100以内加减法、填空题、比大小和应用题

2+2=2+3=4+5=3+3=3+4=5+5=7+2=5+2=6+3=8+2=9-2-4=6-4-1 =10-4-2=9-2-1 =7-2-1 =9-7-2=1+2+2=8-5-3=8-5-1 =4