Unit 2 Math Review

Which is true about the total number of balls shown?

• There are 4 balls, which is an odd number.

• There are 6 balls, which is an even number.

• There are 7 balls, which is an odd number.

• There are 8 balls, which is an even number.

Which expression has an even sum?

• 4 + 3

• 7 + 7

• 7 + 4

• 10 + 7

Dajhan arranged her apple collection in the array below. Which equation shows how many apples Dajhan has in all?

• 3 + 6 = 9

• 6 + 6 + 6 = 18

• 3 + 6 + 3 + 6 = 20

• 6 + 6 + 6 + 6 = 24

Valentina plants a rose garden with 3 rows and 5 columns. Which equation shows the array of roses?

• 5 + 3 = 8

• 3 + 5 = 8

• 5 + 5 + 5 = 15

• 3 + 3 + 3 + 3 = 12

Which array shows an odd number?

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• 
• 
• 

Which shows a list of odd numbers when skip counting by two's?

• 8, 10, 12, 14, 16

• 5, 8, 11, 14, 17

• 9, 11, 13, 15, 17

• 2, 4, 6, 8, 10

Nick shades ten frames to show an even number. Which picture shows Nick's model?

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• 
• 
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Which expression does NOT have a sum or difference of 14?

• 20 - 6

• 2 + 12

• 14 - 0

• 6 + 6

Ava has 5 more pencils than Abella. Abella has 7 pencils. How many pencils do Ava and Abella have altogether?

• 24

• 19

• 12

• 2

Stefania plants 12 sunflowers in arrays. Which equation does NOT represent an array that Stefania can use to plant her sunflowers?

• 6 + 6 = 12

• 3 + 3 + 3 + 3 = 12

• 5 + 5 + 1 + 1 = 12

• 4 + 4 + 4 = 12