Show:
Vocab
Adding Integers
Writing Addition Expressions
Subtracting Integers
Mix
Rules/Strategies
100

6 and -6

opposites

100
-5 + 9
4
100

Change the subtraction expression to an equivalent addition expression:

3 - 7

3 + (-7)

100
-4 - 6
-10
100
-2 - 3
-5
100

How do you find the sum of numbers with different signs

Subtract and take the sign of the bigger number

200

the number added to a number to equal zero

(example: 27 and -27)

additive inverse

200
-12 + 5
-7
200

Change the subtraction expression to an equivalent addition expression:

5 - (-8)

5 + 8

200
4 - 11
-7
200
-10 + 30
20
200

How do you find the sum of numbers with the same signs

Add and keep the sign the same

300

a mathematical symbol of two vertical lines around a number that means that number's distance from zero

absolute value

300
-16 + (-17)
-33
300

Change the subtraction expression to an equivalent addition expression:

-2 - 5

-2 + 5

300
15 - (-7)
22
300

21 - 25

-4

300

Adding the additive inverse is also known as...

add the opposite

400

find the numerical expression (total, solution, sum, difference) for an expression or equation

evaluate

400
-16+18+-17
-15
400

Change the subtraction expression to an equivalent addition expression:

-4 - (-5)

-4 + 5

400
-10 - 11 - (-3)
-18
400
-10 + (-2) - 5
-17
400
Subtracting a negative is the same thing as...
Adding a positive