30 + 35 = 65
20 + 20 = 40
99 - 20 = 79
13 + 7 = 20
18 + 4 = 22
3 + 3 = 6
60 - 10 = 50
10 - 5 = 5
100 - 30 = 70
Thirty plus thirty five equals sixty five.
Thirteen plus seven equals twenty.
Sixty minus ten equals fifty.
One hundred minus thirty equals seventy.
Ninety nine minus twenty equals seventy nine.
Three plus three equals six.
Twenty plus twenty equals forty.
Ten minus five equals five.
Eighteen plus four equals twenty two.