Exploring Addition and Subtraction Strategies for 1st Graders

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

• 10 ducks

• 7 ducks

• 3 ducks

• 5 ducks

Tags

CCSS.2.NBT.B.6

What property allows you to add numbers in any order and get the same result?

• Distributive property

• Commutative property

• Subtractive property

• Associative property

Tags

CCSS.1.OA.B.3

If 8 plus 2 equals 10, what does 2 plus 8 equal?

• 10

• 8

• 2

• 16

Tags

CCSS.1.OA.B.3

How does subtraction differ from addition?

• It doesn't differ

• Numbers cannot be switched

• Only subtraction uses the commutative property

• Subtraction is easier

Tags

CCSS.1.OA.B.3

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

• Only with odd numbers

• Only with even numbers

• Yes

• No

Tags

CCSS.1.OA.B.3

What is the result of 9 subtract 5?

• 14

• 5

• 9

• 4

Tags

CCSS.2.OA.A.1

What does the math mountain help illustrate?

• The relationship between addition and subtraction

• How to multiply numbers

• The commutative property of subtraction

• None of the above

Tags

CCSS.2.NBT.B.5

What two numbers add up to 10?

• All of the above

• 5 and 5

• 7 and 3

• 6 and 4

Tags

CCSS.1.OA.A.1

What is the missing number: 10 plus blank equals 12?

• 0

• 2

• 10

• 12

Tags

CCSS.1.OA.A.1

Why is it helpful to group numbers into tens when adding?

• It's required by math rules

• It simplifies the calculation

• It makes numbers smaller

• It's not actually helpful

Tags

CCSS.1.OA.A.1