Unit 2 Review

Kesia sees a pattern in the shaded part of the chart below. Which rule can be used to find the next shaded number in the pattern?

• add 2

• add 4

• add 6

• add 8

Tags

CCSS.3.OA.D.9

Are the shaded numbers even or odd? Why do you think this pattern happens? Explain.

• Yes, because each digit in the numbers is 0, 2, 4, 6, or 8. This pattern occurs because the sum of even numbers is always even.

• No, because each digit in the numbers is 1, 3, 5, 7, or 9. This pattern occurs because the sum of odd numbers is always odd.

Tags

CCSS.3.OA.D.9

Michiko finds 3 × 6 by breaking 6 apart. Complete the equation to show her work. Write your answer in the blanks.

(a)  

Tags

CCSS.3.OA.B.5

Which expressions can be used to find the product of 6, 5, and 2? Choose all the correct answers.

• 5 × (6 × 2)

• 6 + (5 + 2)

• (2 × 5) × 6

• (5 + 2) × 6

• (5 × 6) × 2

Tags

CCSS.3.OA.B.5

Which multiplication fact does this problem represent? Write your answer in the blanks. (8 × 2) + (8 × 4) = ?

(a)  

Tags

CCSS.3.OA.B.5

Nate is planting blackberries. He puts 20 blackberry plants in each row. How many blackberry plants will he put in 9 rows?

• 29

• 290

• 18

• 180

Tags

CCSS.3.OA.A.3

Explain how you can solve 42 ÷ 6 using a multiplication equation. Then solve the problem.

Tags

CCSS.4.NBT.B.6

What value makes both equations true? Write your answer in the blank. 40 ÷ 8 = ? 8 × ? = 40 ? = (a)  

Tags

CCSS.3.OA.C.7

Complete the fact family. Write your answers in the blanks. 7 × ______ = 21 3 × 7 = ______ 21 ÷ 3 = ______ ______ ÷ 7 = 3

• 8 × 3 = 24, 3 × 8 = 24, 24÷ 3 = 8, 24 ÷ 8 = 3

• 7 × 4 = 28, 4 × 7 = 28, 28 ÷ 4 = 7, 28 ÷ 7 = 4

• 7 × 3 = 21, 3 × 7 = 21, 21 ÷ 3 = 7, 21 ÷ 7 = 3

• 8 × 5 = 40, 5 × 8 = 40, 40 ÷ 5 = 8, 40 ÷ 8 = 5

Tags

CCSS.4.NBT.B.6

Decide if putting the number 4 in the box makes each equation true. Choose Yes or No for each equation.

• Yes

• No

Tags

CCSS.4.OA.B.4