| Adding positive and negative integers | Vocabulary | Subtracting positive and negative integers | Reasoning | Equations |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
5 + -2
5 + -2
3
-8 + 5
-8 + 5
-3
-9 + -8
-9 + -8
-17
When adding two negatives the sum will be: a. always positive, b. always negative, or c. sometimes positive and sometimes negative
When adding two negatives the sum will be: a. always positive, b. always negative, or c. sometimes positive and sometimes negative
B. always negative
Prove with your counters what -7 + 9 equals
Prove with your counters what -7 + 9 equals
2
The answer to an addition problem
The answer to an addition problem
Sum
The answer to a subtraction problem
The answer to a subtraction problem
Difference
Numbers greater than zero
Numbers greater than zero
Positive numbers
The positive number of units a number is from zero on a number line
The positive number of units a number is from zero on a number line
absolute value
The set of numbers that includes positive and negative numbers, and zero
The set of numbers that includes positive and negative numbers, and zero
Integers
10 - (-2)
10 - (-2)
12
-3 - 6
-3 - 6
-9
-4 - (-3)
-4 - (-3)
1
What number should be subtracted from -7 to get a difference of -12?
What number should be subtracted from -7 to get a difference of -12?
5
When you subtract a negative number from a positive number the difference will be: a.) always positive, b.) always negative, c.) sometimes positive and sometimes negative?
When you subtract a negative number from a positive number the difference will be: a.) always positive, b.) always negative, c.) sometimes positive and sometimes negative?
A. Always positive
When solving the problem -5 + 15 by walking the number line, would you be walking forward or backward?
When solving the problem -5 + 15 by walking the number line, would you be walking forward or backward?
Forward
When solving the problem -6 - 5 by walking the number line, would you be walking forward or backward?
When solving the problem -6 - 5 by walking the number line, would you be walking forward or backward?
Backward
When solving the problem -7 - (-3) by walking the number line, would you be facing the negative integers or the positive integers?
When solving the problem -7 - (-3) by walking the number line, would you be facing the negative integers or the positive integers?
Negative integers
When solving the problem -9 - 4 by walking the number line, would you be facing the negative integers or the positive integers?
When solving the problem -9 - 4 by walking the number line, would you be facing the negative integers or the positive integers?
Positive integers
Explain why subtracting a negative number is the same as adding a positive by relating it to the number line.
Explain why subtracting a negative number is the same as adding a positive by relating it to the number line.
When subtracting a negative number, you would be facing in the direction of the negative numbers and walking backwards, which is the same as walking forward when facing the positive integers.
Write an equation to represent beginning at 5 on the number line and ending at 2.
Write an equation to represent beginning at 5 on the number line and ending at 2.
5 - 3 or 5 + (-3)
Write an equation to represent beginning at -7 on the number line and ending at -3.
Write an equation to represent beginning at -7 on the number line and ending at -3.
-7 + 4 or -7 - (-4)
Write an equation that represents beginning at 3 on the number line and ending at -1.
Write an equation that represents beginning at 3 on the number line and ending at -1.
3 + (-4) or 3 - 4
Write an equation to represent beginning at -6 on the number line and ending at -9.
Write an equation to represent beginning at -6 on the number line and ending at -9.
-6 + (-3) or -6 - 3
Write an equation to represent starting at 5.25 on the number line and ending at 7.75.
Write an equation to represent starting at 5.25 on the number line and ending at 7.75.
5.25 + 2.5 or 5.25 - (-2.5)
What is your favorite subject?
What is your favorite subject?
Math
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