Round to the nearest 10
STARTRound to the nearest 100
STARTAdd Two-Digit number by One-Digit
STARTSubtract Two-Digit number
by One-Digit
Add Two-Digit number
by Two-Digits
Subtract Two-Digit number
by Two-Digits
Add Three-Digit number
by One-Digit
Add Three-Digit number
by Two-Digits
Subtract Three-Digit number
by Two-Digit number
Add Three-Digit number
by Three-Digits
Subtract Three-Digit number
by Three-Digit number
Multiply One-Digit by Tens
START