Adding and subtracting Fractions
-8 1/2 - 4
What is -12 1/2
You walk 3 miles from your house to the store. At the store you meet up with a friend and walk with her 1 mile back towards your house. How far are you from your house now?
What is 2 miles
Cameron has a current account balance of -$15.
What does he need to do to reach an account balance of $0?
What is +15
What is the sign of the sum of 2 positive numbers?
What is positive
4 5/6 + (-1 2/6)
What is 3 1/6 or 3 1/2
What is the distance between 27 and 83?
What is 56
-3.7 - 14.9
What is -18.6
Arnav starts with -$5
in his bank account. He withdraws $15. What is his account balance after withdrawing the $15?
What is -$20
What is the sign of the sum of 2 negative numbers?
What is negative
-18 7/9 - (-7 4/9)
What is -11 1/3
You are standing on a cliff that is 26 feet above sea level. Your friend jumps off and goes 12 feet under the water. How far apart are you now?
What is 38 feet
The temperature at midnight was −4° C. By 8 am, it had risen 1.5°. By noon, it had risen another 2.7°. Then a storm blew in, causing it to drop 4.7° by 6 pm. What was the temperature at 6 pm?
What is -4.5
Give the phrases we use in math to remind us how to change a subtraction sentence into an addition sentence.
What is Add the Opposite
A turtle is swimming 10 feet below the surface of the water. A shark is swimming 29 feet below the surface. How far apart are the two?
What is 19 feet
7.85 - ( -31.03)
What is 38.88
The temperature rose 7˚F between noon and 5 p.m. and then fell 9˚F from 5 p.m. to 10 p.m. If the temperature at noon is 60˚F, what would the temperature be at 10 p.m.?
What is 58 degrees
What has to be done before you can add or subtract fractions? What needs to be the same?
What is make the denominators the same
An eagle is flying 232 feet in the air. She spots a fish that is 6 feet under the water. How far with the eagle have to go to catch the fish?
What is 238 feet
- 328.17 - 63.40
What is -391.57
The temperature rose 10˚F between noon and 5 p.m. and then fell 8˚F from 5 p.m. to 10 p.m. If the temperature at noon is 80˚F, what would the temperature be at 10 p.m.?
What is 82
How can you know what the sign will be for the sum of a negative and a positive number?
The answer will have the same sign as the number with the greatest absolute value.