82=10 93=6 77= 0 463=7
1+2=
3+2=
2+2=
23 43
31 54
9﹣39 11+415 14+411+2
76+3 6﹣612 3+98+7
2+73+9 18﹣612+1 4+4+85+6
+8=10
-7=10
19-7=6+
88+8.8= 90÷5= 0.1÷0.2= 0.12×0.8= 0.3²=
÷10= ×0.25= - = + = ×7÷ ×7=