Lesson 20: 4 as a Factor

Lesson 20:

4 as a Factor

Multiple Choice

10+5

• 14

• 15

Multiple Choice

3 x 7 =

• 21

• 12

• 10

• 15

Multiple Choice

6+6

• 11

• 12

Multiple Choice

9+3

• 12

• 14

Multiple Choice

8+8

• 15

• 16

Multiple Choice

3+7

• 9

• 10

Multiple Choice

2 x 7 =

• 14

• 9

• 15

• 12

Multiple Choice

5+9

• 13

• 14

Multiple Choice

12 x 3

• 36

• 63

• 15

• 2

Multiple Choice

6+7

• 13

• 14

Multiple Choice

2+8

• 7

• 10

Multiple Choice

4 x 2 =

• 6

• 8

• 7

• 9

Multiple Choice

4+5

• 10

• 9

Multiple Choice

3 x 3 =

• 12

• 9

• 16

• 15

Using only dimes and pennies...

• $0.32

• $.14

• 53₵

How much money?

How much money?

Lesson 20 Speed Drill

4 as a Factor

• count by 4s from 4 to 48

• 2 groups of 4 equals 2x4

•  $2\times4=8$  

• What is the multiplication twin?

• Remember you already know several 4s multiplication facts because they are twins of the Multiplication Tables we already studied 0, 1, 2, & 3.

Talk me through working this problem.

This time you are on your own.

Talk me through working this problem

• Start by multiplying the ones place:

   $4\times5=20$  

• Write the 0 under the ones place

• Carry the two to the top of the tens place with an addition sign in front

Talk me through working this problem

• No multiply the tens place place:

   $4\times5=20$  

• Now add our carried digit to our product:  $20+2=22$  

• Write the sum beneath our problem to complete the product, 220.

Final Answer