1. Strong’s GMAS Review, Week 7, Problems 4 - 5
Warm-up March 21, 2018
Warm-up
Strong’s GMAS Review, Week 7, Problems 4 - 5

2. Vocabulary
Absolute Value: The distance between a number and zero on the number line. The symbol for AV is shown in the equation:
│ -8 │ = 8
Integers: The set of whole numbers and their opposites (… -2, -1, 0, 1, 2, …)
Opposite numbers: Two different numbers that have the same absolute value.
Example: 4 and -4 are opposites

3. More vocabulary Positive Integer: an integer that is greater than zero
Negative Integer: an integer that is less than zero
Rational Number: the set of numbers that can be written in the form A/B, where A and B are integers and b is not equal to zero

4. Absolute value The distance from a number to zero on a number line.
Absolute values are ALWAYS positive.

5. Addition
SAME SIGNS (both signs are positive or both signs are negative):
Add the numbers and keep the sign – 2 positives stay positive, 2 negatives stay negative
DIFFERENT SIGNS (one positive and one negative):
Subtract the small number from the larger number
Keep the sign of the larger number – if positive number is larger, answer is positive; if negative number is larger, answer is negative (absolute value)

6. Subtraction Keep Change Change (KCC)
Keep the sign of the first number – keep it as it is
Change the problem from subtraction to addition ( - sign becomes + sign)
Change the sign of the second number – positive number becomes negative, negative number becomes positive
Use the rules of addition (you changed it to an addition problem!)

7. Classwork Page 9 in the Common Core book All problems
Please don’t write in the books