Addition and Subtraction Concepts

How many ducks are there in total if you have 3 blue ducks and 7 yellow ducks?

• 8

• 11

• 10

• 9

What is the commutative property of addition?

• You can subtract numbers in any order.

• You can only add numbers in a specific order.

• You can switch numbers around in addition and get the same result.

• You can switch numbers around in subtraction.

If 8 + 2 equals 10, what number plus 8 also equals 10?

• 1

• 2

• 4

• 3

In subtraction, can you switch the numbers around like in addition?

• It depends on the numbers.

• Only sometimes.

• No, you cannot switch them.

• Yes, you can switch them.

What is a math mountain?

• A tool to subtract numbers.

• A visual aid to show the relationship between addition and subtraction.

• A tool to add numbers.

• A mountain made of numbers.

If 9 - 4 equals 5, what does 9 - 5 equal?

• 6

• 5

• 4

• 3

How can you use addition to solve a subtraction problem?

• By multiplying the numbers.

• By subtracting the total from the smaller number.

• By counting up from the smaller number to the total.

• By adding the numbers in the subtraction problem.

What is the benefit of grouping numbers to make tens in addition?

• It simplifies the addition process.

• It makes subtraction easier.

• It has no benefit.

• It makes addition more complicated.

Which of the following pairs are partners of 10?

• 5 and 6

• 4 and 7

• 2 and 9

• 3 and 7

If 2 + 6 + 4 equals 12, what does 10 plus what number equal 12?

• 1

• 2

• 3

• 4