Unit 4 Review

Repeated Addition

Commutative property

Missing Factor

True or False

Word Problems

100

What is 4+4+4+4=____

100

Write the related fact

9x1=9

1x9=9

100

Using your multiplication chart, solve

__x9=54

6x9=54

100

The number 77 is even.

False

100

Joy practiced piano 4 days last week. She practiced for 2 hours each day. How many hours did Joy practice piano last week?

8 hours

200

⚫️⚫️⚫️⚫️⚫️

Write an addition number sentence for this array?

_+_+_+_+_=___

3+3+3+3+3=15

200

Write the related fact

5x5=25

200

Using your multiplication chart solve

12x__=60

12x5=60

200

When you multiply a number by 5, the product will always end in 5, or 0.

True

200

Mr. Bob planted 6 rows of carrots with the same number of carrots in each row. If Mr. Bob planted a total of 48 carrot plants, how many carrots were planted in each row?

8 carrots

300

Draw an array for this number sentence

6+6+6+6= 24

⚫️⚫️⚫️⚫️

300

Write the related fact

8x6=48

6x8=48

300

Using your multiplication chart, solve

__x6=0

0x6=0

300

5x1=5 is an example of the zero property

False

300

Jeff shared stickers with 8 friends. He gave each friend 4 stickers. How many stickers did Jeff share?

32 stickers

400

Write an addition number sentence for this array

⚫️⚫️⚫️⚫️⚫️⚫️⚫️⚫️

5+5+5+5+5+5+5+5=40

400

Write the related fact

100x3=300

3x100=300

400

Using your multiplication chart, solve

4x__=44

4x11=44

400

12x5 and 5x12 DO NOT equal the same number

False

400

Molly thinks 2x9=17 because she drew a picture and counted the dots in her drawing, but Cameron disagrees. He thinks Molly miscounted. Cameron says when you multiply a number by 2, the product must end with an even number. Cameron says 2x9=18. Who is correct?

Cameron

500

Draw an array for 6x2=12

⚫️⚫️⚫️⚫️⚫️⚫️

500

Write the related fact

10,000x2=20,000

2x10,000=20,000

500

Using your multiplication chart, solve

7x__=56

7x8=56

500

100x1=100 is an example of the identity property

True

500

Tommy and 3 friends played a game of Go Fish. To start the game, each player was dealt 7 cards. How many cards were dealt to start the game? Show TWO equations that can be used to solve this problem.

7 x 4 = 28 cards

4 x 7 = 28 cards