OA 1-4 Practice

On Monday, Eric found a bird's nest that had 9 eggs in it. On Wednesday, Eric saw that 4 of the birds had hatched from their eggs. How many birds had not hatched?

• 4

• 5

• 6

• 7

Stephen gave Bryson 4 toy cars. Bryson's mother gave Bryson 12 more toy cars. Which number fact below has the same answer as the number of toy cars given to Bryson?

• 18 - 5

• 2 + 11

• 9 + 7

• 6 + 8

Who has an even number of bracelets?

• Kelsey and Catherine

• Brianna and Catherine

• Brianna

Who has an odd number of bracelets?

• Brianna and Kelsey

• Kelsey and Catherine

• Brianna

Which of the following two math problems have even answers?

• 9 + 6 = ?

• 20 - 7 = ?

• 3 + 5 = ?

• 14 - 8 = ?

Which of the following two math problems have odd answers?

• A. 7 - 4 = ___

• B. 2 + 8 = ___

• C. 19 - 8 = ___

• D. 9 - 7 = ___

Which number sentence shows how Martha grouped her carrots?

• 2 + 2

• 4 + 4

• 4 + 4 + 4 + 4

Grace plants 2 rows of tomato plants. In each row, there are 3 tomato plants. Which expression shows how many tomato plants Grace planted?

• 2 + 3

• 2 + 2

• 3 + 3

• 3 + 3 + 3

Which of the following groups shows 3 + 3 + 3?

• Group A

• Group B

• Group C

• Group D

What are two expressions Lewis could use to show the number of magnets he found? Select two answers.

• 2 + 2 + 2 + 2 + 2

• 5 + 5 + 5 + 5 + 5

• 5 + 5

• 2 + 2 + 5 + 5 + 5

• 2 + 2