Adding and Subtracting Integers Review

Potpourri

100

All absolute values are ___________

Positive

200

What 3 kinds of numbers make up the integer group?

Positive, negative, and 0

300

Additive inverses are _________ values that equal _______

opposite zero

400

**Daily Double** What does each symbol mean a) -( n ) b) | n | You must answer both parts!

a) Opposite or negative value b) Absolute value or "distance from zero"

500

Subtracting a positive number is the same thing as...

Adding a negative value 7-4 = 7 +-4

Adding Integers

100

5 + 9

14

200

-12 + -5

-17

300

**DAILY DOUBLE** How do you find the sum of integers with different signs? You must describe both steps.

Subtract the values first. Then attach the sign of the integer with the greater value

400

-6 + 17

11

500

-16 + 18 + -17

-15

Subtracting Integers

100

-4 - 6

-4 + (-6) = -10

200

4 - 11

4 + (-11) = -7

300

15 - (-7)

15 + 7 = 22

400

-27 - (-3)

-27 + 3 = -24

500

**DAILY DOUBLE** -10 - 11 - (-3)

-10 + (-11) + (3)= -18

Integer tools and Word Problems

100

Jason dives 10 feet under water and swims back up 3 feet. Where is his current location in the water?

-10 + 3= -7 feet or 7 feet under water

200

Chris gets paid $15 for cutting the grass, but he must pay for his Netflix bill which is $11. How much money does he have?

$15 - $11 = $4

300

The temperature at 7AM was 76 degrees, it rose 12 degrees. What is the current temperature?

76 +12 = 88 degrees

400

Angela was paid $65 for babysitting. She went to the mall and bought a sweater for $27 and an infinity scarf for $19. How much money does Angela have now? Show the equation you set up to solve. CIRCLE your final answer.

65 - 27 - 19 = 65 - 46 = $19

500

**Daily Double** Brian has $1000 in his bank account. He withdraws $750 for rent. He lends a friend $70,and buys new clothes for $120. He finds $100 cash on the street and deposits it. How much money is in Brian's bank account now?

1000 - 750 - 70 - 120 + 100 = $160

Change Subtraction to Addition

100

**DAILY DOUBLE** To change subtraction to addition we... You must name ALL THREE STEPS.

Keep the first value. Change the subtract sign to add. Change the sign of the second value (to it's opposite).

200

Change/solve -9 - (-4) Show the rewrite expression you set up to solve. CIRCLE your final answer.

-9 + (4) = -5

300

Change/solve 9 - (4) Show the rewrite expression you set up to solve. CIRCLE your final answer.

9 + (-4) = 5

400

Change/solve 5 - (-6) Show the rewrite expression you set up to solve. CIRCLE your final answer.

5 + (6) = 11

500

Change/solve -18 - 5 Show the rewrite expression you set up to solve. CIRCLE your final answer.

-18 + (-5) = -23