Exploring Doubles Facts in Addition

What is a doubles fact?

• A fact where the sum is always odd

• A fact where the numbers being added are the same

• A fact where the numbers being added are different

• A fact where the sum is always greater than 10

What is the sum of 3+3 in a doubles fact?

• 5

• 6

• 8

• 7

How can you find the sum of 5+6 using doubles facts?

• Think of 5+5 and add 2

• Think of 6+6 and subtract 2

• Think of 6+6 and subtract 1

• Think of 5+5 and add 1

What is the sum of 9+8 using doubles facts?

• 16

• 17

• 18

• 19

Which doubles fact can be used to find the sum of 6+7?

• 7+7 and subtract 1

• 6+6 and add 1

• 7+7 and add 1

• 6+6 and subtract 1

How many pies did Mrs. Kim bake if she made 5 cherry pies and 4 pecan pies?

• 8

• 9

• 10

• 11

What doubles fact can be used to find the sum of 5+4?

• 5+5 and add 1

• 5+5 and subtract 1

• 4+4 and subtract 1

• 4+4 and add 1

Which doubles fact has a sum greater than 10 but less than 16?

• 4+4

• 8+8

• 6+6

• 5+5

What is the sum of 7+7 in a doubles fact?

• 12

• 13

• 14

• 15

What is the sum of 3+4 using doubles facts?

• 9

• 8

• 6

• 7