10以内连加连减练习题100道

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