Positive and Negative Numbers 2

- 4 - 9 =

• - 5

• 5

• - 13

• 13

7 - 17 =

• 24

• - 10

• 10

• - 24

12 - 33

• - 21

• 45

• 21

• - 45

55 - 30 =

(a)  

- 15 - 15 =

(a)  

- 6 - 0 =

(a)  

- 11 - 18 =

• 7

• 29

• - 29

• - 7

- 3 + 13 =

• - 16

• 16

• - 10

• 10

• None of these.

- 10 + 4 + 6 =

• 8

• 0

• - 8

• - 19

Santi wants to buy a pizza from his friend Luis at the restuarant. Santi has 410 pesos only, but the pizza costs 645 pesos. His friend says he can take the pizza and pay him later. How much money does Santi owe his friend? Type the number only.

(a)