Mid Unit 1 Math Test 2.OA

What is 9 − 3?

• 12

• 9

• 6

There are 3 dogs at the park. Then 7 more dogs arrive. How many dogs are at the park now? Decide which equations could be used to solve this problem.

• 3 + 7 = 10

• 7 – 3 = 4

• 7 + 3 = 10

Jadzia wants to find 16 − 9.

Which of these shows how she can make a ten to solve the problem?

• 16 − 6 = 10

  10 − 6 = 4

• 16 − 6 = 10

  10 − 3 = 7

• 16 − 10 = 6

  6 − 3 = 3

Noah has 8 science books. 3 books are about planets.

The rest are about dinosaurs. How many books are about dinosaurs?

Which equations can be used to solve the problem? Choose all the correct answers.

• 11 − 3 = 8

• 3 + 8 = 11

• 3 + 5 = 8

• 8 + 3 = 11

• 8 − 3 = 5

Choose the double that could be used to solve the problem:

2 + 3 = ?

• 2+2

• 10+10

• 5+5

Solve the problem.

2 + 3 = ?

• 6

• 1

• 5

Ryder buys 15 balloons. He gives 7 away to his friends.

How many balloons are left?

Which equation could be used to solve this problem?

• 15 + 7 = ?

• 7 + 15 = ?

• 15 − 7 = ?

Find 11 − 5 by counting on. Show your work.

• 6

• 16

• 5

3 black cars are parked in a lot. 8 red cars are parked in the same lot. How many total red and black cars are in the lot?

• 3

• 11

• 5

Elon is trying to solve some equations. Decide if each equation shows how to make a ten to find the sum.

• 9 + 8 = 9 + 1 + 7 = 17

• 7 + 8 = 7 + 3 + 5 = 15

• 9 + 9 = 9 + 2 + 6 = 18