# Determine Unknown in Addition and Subtraction Equation: Worksheets, Online Test and Calculators

Determine unknown in addition and subtraction equation worksheets, solved worksheet problems or exercises with step-by-step work, formative assessment as online test, calculator and more learning resources to learn, practice, assess and master the basic math skills of algebra.

Determine Unknown in Addition and Subtraction Equation
Name
Date

1
? - 5 = 10
2
7 + 6 = ?
3
2 + 1 = ?
4
19 - ? = 16
5
4 + ? = 7
6
9 - 4 = ?
7
? - 3 = 17
8
? + 1 = 3
9
16 - ? = 12
10
16 - ? = 11

Solved Worksheet Problems
1
15 - 5 = 10
2
7 + 6 = 13
3
2 + 1 = 3
4
19 - 3 = 16
5
4 + 3 = 7
6
9 - 4 = 5
7
20 - 3 = 17
8
2 + 1 = 3
9
16 - 4 = 12
10
16 - 5 = 11

## Worksheet: Determine Unknown in Addition and Subtraction Equation

Determine unknown in addition and subtraction equation worksheet is the largest collection of practice problems and solved exercises which can be served as homework, classwork or assignment problems for the students to learn, practice, assess, iterate and master the skills of how to solve such algebra problems in basic mathematics.