Addition Number Sentences

The total of two numbers is 23. One number is 12, what is the other number?

Choose the correct number sentence:

• 12 + ? = 23

• 23 + 12 = ?

The total of two numbers is 32. One number is 21, what is the other number?

Choose the correct number sentence:

• 32 + 21 = ?

• ? + 21 = 32

The total of two numbers is 56. One number is 47, what is the other number?

Choose the correct number sentence:

• 47 + 56 = ?

• 47 + ? = 56

The total of two numbers is 100. One number is 50, what is the other number?

Choose the correct number sentence:

• 50 + 100 = ?

• ? + 50 = 100

What number must be added to 15 and 10 to give a total of 30?

Choose the correct number sentence:

• 15 + 10 + 30 = ?

• ? + 10 + 15 = 30

Add 11, 12 and 13.

• ? = 11 + 12 + 13

• 11 + ? + 12 = 13

Find the sum of 41 and 14.

• 14 + 41 = ?

• 14 + ? = 41

I have two numbers, 18 and 20. How do I find the total?

• 18, 19, 20

• 18 + 20 = ?

Which number sentence shows the process of finding the sum?

• 77 + 66 = ?

• 77 - 66 = ?

Find the total of these numbers: 2, 3, 5, and 11.

• 2 + 3 + 5 = 11 + ?

• 2 + 3 + 5 + 11 = ?