40+332 14-68 11-95+2
7+612 20+527 38-838-30
+5=12 -6=9 34-4=-8
14-=7 -70=8 13-8=10-
37÷8= 27÷6= 77-24 +36=
8+=13 36=30+ 9+=12
78=70+ 40=49- 78=70+