Algebraic Operations

Is this equation true or false?
9 + 3 = 10

• true
• false

Which number belongs on the line?
13 - __ = 4
13 - 4 = 9

• 3
• 8
• 9

Look at the fact.
15 - 7 = 8
If this fact is true, choose the other fact that is true?

• 15 - 8 = 7
• 7 - 8 = 15
• 15 + 7 = 8

10 + 6 = 16, so what is 16 - 6 = ___

• 9
• 10
• 16

Which number sentence is true?

• 15 + 3 = 2 + 10
• 15 + 3 = 8 + 10
• 15 + 3 = 9 + 10

Solve the problem.
2 + 7 = ___ + 3

• 9
• 12
• 6

Look at this fact.
4 + ___ = 12
What fact will help you solve this problem?

• 12 + 4 =
• 12 - 4 =

Solve the problem.
6 + ____ = 14

• 8
• 20
• 10

Look at the fact family.
6 + 4 = 10
4 + 6 = 10
10 - 6 = 4
Which fact is missing?

• 10 + 4 = ___
• 10 + 6 = ___
• 10 - 4 = ___

Solve the problem.
13 - ___ = 7

• 6
• 20
• 10