Integers
What is the opposite of 4
-4
Find the value of the expression. 9−(-3)
12
Describe how you would graph -4 + 8
Start at 0 and go 4 to the left, then 8 to the right and stop at 4
A student is learning about positive and negative numbers with manipulatives.
•Each black cube represents +1
•Each white cube represents −1.
If there are currently 15 black cubes on the student’s desk, how many white cubes must the student add to the desk for the combined value of the cubes to represent 0?
15
Part 1 - what is the sign of the sum of 2 negative numbers? Part 2 - what is the sign of the sum of 2 positive numbers?
What is Part 1 - negative Part 2 - positive
What is the additive inverse of -32
32
Write an addition expression equivalent to 2−(−6). Then find 2−(−6).
2 + 6 = 8
Add. −9.3+(−6.5)
-15.8
Which situation does not describe a final value of 0?
A. A balloon rose to a height of 700 feet above the ground. It then dropped 475 feet and then dropped another 225 feet.
B. The temperature at 10 a.m. was 2° F. During the next 3 hours it rose 8 degrees only to drop down 10 degrees.
B
Double Jeopardy!!!! How can you know what 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.
A worker in a silver mine descends 36 feet. Use an integer to represent the change in the worker's position.
-36
Find (−1/3)−(-5/6)
1/2
- 328.17 + 63.40
What is -264.77
On Monday Kayla ran 1 ½ miles and on Tuesday she ran 2 ¼ miles. How much further did she run on Tuesday?
3 3/4
Give one of the 2 phrases or names we use in math to remind us how to change a subtraction sentence into an addition sentence.
What is Add the Opposite or Keep, Change, Change
What does -32 + 50 mean in terms of money in the bank? How much would you have in the bank?
Withdrawing 32 and depositing 50.
You will have 18 in the bank
Subtract. -10.0−(−2.5)
-7.5
Simplify the expression. (2/3)+(1/9)
7/9
Your bank account has a balance of $45.24. This is $51.35 more than yesterday. What was your account balance yesterday?
.-$6.11
What has to be done before you can add or subtract fractions?
What is make the denominators the same
What is the distance between -17 and 7 on a number line?
24
The freezing point of Chemical A is −127.27°C. The freezing point of Chemical B is −89.1°C. Which chemical has a higher freezing point? How much higher is it?
Chemical B has a higher freezing point by 38.17 degrees
4 5/6 + (-1 2/3)
3 1/6
The Dead Sea is 1410.8 feet below sea level.Mexico City is 7349 feet above sea level. What is the difference in the two elevations? (Mr. Crider created question)
8759.8
What has to be done before you can add or subtract decimals?
What is line up the decimal point (and the place values)