Multiplication Review

Fast Facts

100

2x9

18

200

6x6

36

300

9x8

72

400

11x11

121

500

12x12

144

Fast Facts 2

100

3x7

21

200

4x6

24

300

7x8

56

400

11x12

132

500

12x10

120

Arrays

100

Draw an array for this math equation:

2x5

xxxxx

xxxxx

200

Draw an array for this math equation:

3x8

xxxxxxxx

xxxxxxxx

xxxxxxxx

300

Draw an array for this math equation:

6x5

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

400

Write the multiplication equation AND find the product for this array:

xxxxxxx

xxxxxxx

xxxxxxx

xxxxxxx

4x7=28

500

Write the multiplication equation AND find the product for this array:

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

xxxxx

8x5=40

Properties

100

True or False.  This equation shows the commutative property of multiplication.

4x3 = 3x4

True.

You can multiply the factors in any order and the product stays the same.

200

True or False.  This equation shows the commutative property of multiplication.

5x6 =  10x3

False.

The product for each equation is 30, but the factors are not the same numbers.

300

True or False.  This equation shows the associative property of multiplication.

2x(3x4) = (2x3)x4

True.

You can group the factors in different ways and the product stays the same.

400

True or False.  This equation shows the associative property of multiplication.

3+(8x9) = (9x3)+8

False.

The factors are the same, but the answers would be different, and addition is not part of this property.

500

Find the product AND write the name of the property shown.

(8x4)x2 = (2x4)x8

The product is 64.

This shows the associative property of multiplication because you can group the factors differently and the product stays the same.

Word Problems

100

Lexi and Brittany both have the same number of hair scrunchies.  Lexi arranged her scrunchies in 5 rows with 8 scrunchies in each row.  Brittany arranged her scrunchies in 8 rows.

How many hair scrunchies did Brittany arrange in each row?

Brittany put 5 scrunchies in each of her rows.

200

Levi and Millan both have the same number of sports jerseys.  Levi arranged his jerseys in 6 rows with 10 jerseys in each row.  Millan arranged his in 10 rows.

How many jerseys did Millan arrange in each row?

Millan arranged 6 jerseys in each row.

300

Emma bought 2 boxes of gel pens.  Each box has 6 packs with 5 colors of pens.

2x(6x5)

What is another way to find the total number of pens?

(2x6)x5

400

Jullian bought 4 boxes of chips for math tutoring.  Each box has 10 bags with 3 different flavors.

4x(10x3)

What is another way to find the total number of chips?

(4x10)x3

500

Nathan has 6 comic books.  Each comic book has 10 pages with 2 pictures on each page.  Nolan has 2 comic books.  Each comic book has 10 pages with 6 pictures on each page.

Write TWO multiplication equations.  One should show how many pictures Nathan has in his books, and one should show how many pictures Nolan has in his books.  Then, figure out who has more pictures.

Nathan: 6x(10x2)=120 pictures

Nolan: 2x(10x6)=120 pictures

They have the same amount of pictures in their comic books.