Adding Integers
( 7 ) + ( - 8 ) =
-1
( 8 ) - ( 7 ) =
1
Represent the following words as an integer:
James grew seven inches in one year.
+7
Use repeated addition to solve this multiplication problem:
8 x 4 =
8 + 8 + 8 + 8 = 32
or
4+ 4 + 4 + 4 + 4 + 4 + 4 + 4 = 32
Jennifer had 3 tennis balls. Jeff has 7 tennis balls. How many do they have in total?
10 Tennis Balls
( - 4 ) + ( - 5 ) =
-9
( 8 ) - ( - 7 ) =
15
Represent the following words as an integer:
Marissa dropped twelve apples from her basket.
- 12
Draw a picture to solve the multiplication problem:
4 x 3 =
12
At 8 am, it was 7 degrees in Soldotna, AK. At 1 pm, it was -2 degrees in Soldotna, AK. What is the difference in temperatures?
( 7 ) - ( -2 ) = 9 degrees
( - 12 ) + ( 9 ) =
-3
( - 9 ) - ( - 6 ) =
-3
Which integer is greater:
( - 20 ) or ( 8 )
8
Make an array to help solve the following problem:
7 x 4 =
28
Jerry was hiking. When he started hiking he was 12 feet above sea level. At the highest point of his hike, Jerry was at 27 feet above sea level. What is the difference in elevation between the highest point of Jerry's hike and the lowest?
(27) - (12) = 15 feet
( - 15 ) + ( 21 ) =
6
( 12 ) - ( 18 ) =
-6
Which integer is the least:
( 5 ) or ( -5 )
-5
487 x 9 =
4,383
An elevator was on the 9th floor. It went up 6 floors, then down 8 floors. What floor is the elevator on now?
(9) + (6) = 15
(15) - (8) = 7
The elevator is on the 7th floor.
( - 17 ) + ( 20 ) =
3
( - 20 ) - ( - 11 ) =
-9
Order these integers from least to greatest:
18 9 - 5 12 -20 0
-20, -5, 0, 9, 12, 18
87 x 95 =
8,265
Pam had 5 baskets. There were 4 cookies in each basket. How many cookies did Pam have?
5 x 4 = 20 cookies