7-1: Represent Addition and Subtraction Problems

The pet store has 22 land turtles and 35 freshwater turtles. How many turtles does the pet store have in all? Which equation models the problem?

• 13 + 22 = 35

• 22 + 35 = 57

• 35 – 22 = 13

Tags

CCSS.2.OA.A.1

Kelly has 32 books. 19 are on the shelf and the rest are on her desk.

How many books are on the desk?

• 11

• 12

• 13

Tags

CCSS.2.OA.A.1

Some dogs are at the park. 10 dogs join them. Now there are 24 dogs. How many dogs are there at first?

• 14

• 34

• 44

Tags

CCSS.2.OA.C.3

Ahmed has 28 plants. 12 are tomato plants and the rest are pepper plants.

How many pepper plants are there?

• 40

• 16

• 15

Tags

CCSS.2.OA.A.1

There are 54 runners in the running club. There are 28 boys and some girls.

How many girls are in the running club?

• 26

• 82

• 80

Tags

CCSS.2.OA.A.1

Logan has 10 fewer crayons than Noah. Logan has 20 crayons.

How many crayons does Noah have?

• 30

• 10

• 20

Tags

CCSS.1.OA.A.1

Emily makes 43 backpack charms and some friendship bracelets. She makes 70 items in all.

How many friendship bracelets does Emily make?

• 25

• 20

• 27

• 22

Tags

CCSS.2.OA.A.1