Multiplying by Multiples of 10
10 x 10
100
5 x n = 30
n = 6
10 ➗ 10 = n
n = 1
The family has a 12 foot ceiling in their living room. Their Christmas tree is 7 feet tall. How much extra space do they have?
12
150
n x 6 = 18
n = 3
25 ➗ n = 5
n = 5
Mrs. McCluskey is baking cookies for a family Christmas party. If each package of cookies makes 12 cookies. How many cookies will she bake if she makes 3 packages?
36 cookies
5 + ( 6 x 5 ) =
35
60 x 9
540
6 x 7 = n
n = 42
n ➗ 6 = 5
n = 30
There are 3 strands of lights on each Christmas tree. How many strands of lights are on 8 Christmas trees?
24 strands of lights
(10 ➗ 5) x 2
4
70 x 9
630
n x 9 = 72
n = 8
n ➗ 9 = 5
n = 45
Santa can see up to 40 children per hour. How many students can he see in 6 hours?
240 children
(10 x 10) ➗ 10 =
1
9 x 90
810
12 x n = 60
n = 5
100 ➗ 10 = n
n = 10
Julie has 4 boxes of ornaments. Each box has 20 ornaments. While unpacking them, 3 ornaments broke. How many ornaments does Julie have now?
77 ornaments
7 - (6 ➗ 3) =
5