Math Class

Adding Rational Numbers Using Absolute Value

100

4 + 17 =

21

200

-6 + (-12) =

-18

300

2.2 + (-3.7) =

-1.5

400

-3 + (-5) + 8 =

0

500

40 + 40 =

80

Subtracting

100

8 - 2 =

8 + (-2) = 6

200

4 - 9 =

4 + (-9) = -5

300

-3 - 7 =

-3 + (-7) = -10

400

- 9 - (-2) =

-9 + 2 = -7

500

11 - (-8) =

11 + 8 = 19

Rational Numbers - Money and Debts

100

Clare has $54 in her bank account. A store credits her account with a $10 refund. How much does she now have in the bank? 

54 + 10 = 64

200

Mario owes the bank $60, she gets $85 for his birthday and deposits it into her account. How much does he now have in the bank? 

-60 + 85 = 25

300

Tyler is overdrawn at the bank by $180. His brother has $70 more than him. How much money does Tyler's brother have? 

-180 + 70 = -110

400

Conrad has $37 in his bank account and writes a check for $87. After the check has been cashes, what will the bank balance show? 

37 - 87 = -50

37 + (-87) = -50

500

Jessica has receive $500 for her birthday party, her dad asked to borrow $100. How much cash does Jessica have left?

500 - 100= 400