Unit 3 Lesson 14-16 Quiz

Find the answer by turning the product into a smaller product and a sum.

6 x 8 = ​ (a)  

= ​ (b)  

= ​ (c)  

• 5 x 8 + 8
• 40 + 8
• 48
• 3 x 8 + 8
• 24 + 8
• 32

Find the answer by turning the product into a smaller product and a sum.

7 x 6 = ​​ (a)  

= ​ ​ (b)  

= ​ ​ (c)  

• 7 x 5 + 7
• 35 + 7
• 42
• 5 x 5 + 7
• 25 + 7
• 32

Multiply.

3 x 40 =​ (a)  

• 120
• 12
• 102
• 10
• 122
• 16
• 160

Multiply.

4 x 500 =​ (a)  

• 2000
• 200
• 2500
• 250
• 20
• 25

Multiply.

6 x 300 =​ (a)  

• 1800
• 180
• 18
• 1200
• 120
• 12

Multiply.

9 x 200 =​ (a)  

• 1800
• 180
• 18
• 1200
• 120
• 12

Multiply

6 x 4 = ​ ​ (a)  

60 x 400 = ​ ​ (b)  

• 24
• 24 000
• 22
• 2 400
• 22 000
• 2 200

Multiply

5 x 3 = ​ ​ ​ (a)  

500 x 30 = ​ ​ ​ (b)  

• 15
• 15 000
• 20
• 2 000
• 18 000
• 2 200

Multiply

4 x 9 = ​ ​ ​ ​ (a)  

400 x 90 = ​ ​ ​ (b)  

• 36
• 36 000
• 27
• 2 700
• 27 000
• 45
• 45 000

Double 3 times the number to find 6 times the number. Then find 12 times the number by doubling again.

3 x 7 =

6 x 7 =

12 x 7 =

• 21

  42

  84

• 20

  40

  80

• 15

  30

  60

• 24

  48

  96