Integers are Confusing!

Thursday 6 June 2019

WALT: solve simple addition and subtraction problems involving integers.

Adding and subtracting Integers

1. 2 - 3 =

-1

2. -2 - 3 =

-5

3. -2 + 3 =

1

4. -2 - (-3) =

1

5. -2 + -3 =

-5

6. 6 - 10 =

-4

7. -6 - 10 =

-16

8. -6 - (-10) =

4

9. -6 + -10 =

-16

10. 5 - 8 =

-3

11. -5 - 8 =

-13

12. -5 + 8 =

3

13. -5 - (-8) =

3

14. -5 + -8 =

-13

I have $10. I went McDonalds with my friend and spent $16. How much money do I have now?

10 - 16 =

10 - 10 =

0 - 6 =

-6

I have -$6 in my eftpos card and I spent $13 at Laser Strike with my friends. How much money do I have now?

-6 - 13 =

-6 - 10 =

-16 - 3 =

-19

I have -$19. I washed my mums car, did the mowing and cleaned the toilets. I was paid $11. How much money do I have now?

-19 + 11 =

-19 + 9 =

-10 + 2 =

-8

I have $8. I bought my family 3 pizzas for $21. How much do I have now?

8 - 21 =

8 - 8 =

0 - 13 =

-13

I have -$13. I spent $22 at KMart. How much money do I have now?

-13 - 22 =

-13 - 11 =

-24 - 11 =

-35

I have -$35. I cleaned the windows for Gran’s house and got paid $48. How much money do I have now?

-35 + 48 =

-35 + 35 =

0 + 13 =

13