10-3= 3+4= 16-5+3=
18-6= 12+3= 18-5-4=
9+7= 11+6= 5+7+6=
2+3=
5-4=
3+4=
2-0=
7-4=
5-1=
6+1=
7-5=
4+1=
5+2=
2+5=
7-2=
0+3=
5-5=
6-3=
4-3=
6-6=
1+5=
☆☆☆☆☆☆☆☆☆☆
圈一圈: 26÷4=……
圈一圈: 33÷8=......
圈一圈: 18÷7=……
圈一圈: 44÷5=……
500-213= 10÷10%= 0.25+2.83= 1.25×0.8= 3.7-3.7÷3.7=
92-33= + = × = 9÷ = ( - )×20=