Part B: Basic Facts

Which number makes both addition sentences true? 4 + 5 = ? and 5 + 4 = ?

• A) 10

• B) 9

• C) 8

• D) 7

Ellen and Joseph solve 8 + 8 + 2. Ellen adds 8 + 8 to make a double then adds 2. Joseph adds 8 + 2 to make a ten then adds 8. Who finds the correct sum?

• A) Ellen

• B) Joseph

• C) Neither of them

• D) Both of them

Which fact with 10 can help you solve 8 + 9?

• A) 10 + 6 = 16

• B) 10 + 7 = 17

• C) 10 + 8 = 18

• D) 10 + 9 = 19

Andy has some stickers. He gives 7 stickers away. Now Andy has 9 stickers. How many stickers did Andy have before?

• A) 18

• B) 17

• C) 16

• D) 15

Look at the picture and number sentence. Which is a related subtraction fact? Choose all that apply.

• A) 7 - 6 = 1

• B) 13 - 9 = 4

• C) 13 - 6 = 7

• D) 13 - 7 = 6

Jenna has 15 crayons. 8 are out of the box. How many are in the box?

Sam has 9 fish. Wendy has 4 fish. How many more fish does Sam have than Wendy? Draw a picture if you need to.

• A) 4

• B) 5

• C) 6

• D) 7

Which fact can help you solve 17 - 9? Choose all that apply.

• 8 + 9

• 8 + 8

• 9 + 8

• 17 - 8

Which addition sentence matches the array?

• 3 + 5 = 8

• 5 + 5 = 10

• 3 + 3 + 3 + 3 = 12

• 5 + 5 + 5 = 15

Tammy, Jin, and Marcus are trying to find the addition sentence that matches this array. Tammy wrote 4 + 4 + 4 = 12. Jin wrote 3 + 3 + 3 = 9. Marcus wrote 3 + 4 + 3 = 10. Who wrote the addition sentence that matches the array?

• Tammy

• Jin

• Marcus

• All three of them