Integers
What are integers?
Any number on a number line.
What is a rational number?
Any number that can be made into a fraction
When adding integers, how do I know if my answer will be positive?
Both numbers are positive or the positive number is bigger
What are the 4 operations of math?
addition
subtraction
multiplication
division
Bryan is hiking on a mountain and stops at 15 5/8 feet above sea level. The base of the mountain is 10.2 feet below sea level. What is the vertical distance between Bryan and the base of the mountain?
25.825 feet
What three parts make up a number line?
negative numbers
positive numbers
zero
What are the parts of a fraction?
Part Numerator
Whole Denominator
When adding integers, how do I know my answer will be negative?
Both numbers I'm adding are negative or the larger number is negative.
Which operations are opposites?
addition subtraction
multiplication division
The temperature in the afternoon was -7.5 degree. It dropped 5 degrees by the early evening and then dropped another 8.5 degrees by midnight. What was the temperature at midnight?
-21 degrees
What are whole numbers?
All positive numbers and zero
Another way of writing a fraction is...
a decimal
How do I know if my answer is zero when adding integers?
The integers are opposites
A shark was 22 5/10 feet under the water and a fish was 9 3/6 feet above the shark. What number represents the fish's position in the water?
-13 or 13 feet below the water
A shark was 20.5 feet under water and a fish was 7 2/4 feet under the shark. What number represents the fish's position in the water?
-28 fee or 28 feet below water
What are opposite integers?
Numbers that are the same distance away from zero
What are the two types of decimals?
Terminating and repeating
What does sum mean?
Sum is the answer when you add two or more integers
What does difference mean?
The answer when subtracting integers
The temperature on Friday was 50 degrees. It then went up 15.5 degrees Saturday. And then went down 3 4/8 of Sunday. What was the temperature on Sunday?
62 degrees
What does absolute value mean?
The distance a number is away from zero
If I'm dividing a fraction, where does the two parts of the fraction go?
denominator outside and numerator inside
What 3 strategies did we use to find the sum when adding integers?
1. Number line
2. Bar model
3. I Have / I owe
Chris borrowed $25 6/10 from his brother. He then borrowed $30 2/5 from his sister. He got paid $75.35 and then paid them both back. How much money did Chris have left?
$19.35
The temperature on Friday was 70 degrees. It then dropped 10.8 degrees Saturday. And then went up 5 8/10 of Sunday. What was the temperature on Sunday?
65 degrees