INTEGERS

 QUESTION 1

What will the reading be on a thermometer if the temperature :

a) rises from 6 degrees Celsius with 15 degrees Celsius

b) rises from 1 degree Celsius with 8 degrees Celsius and drops again by 12 degrees Celsius

c) drops from 2 degrees Celsius with 9 degrees Celsius 

d) drops from -5 degrees celsius with 8 degrees Celsius and rises again by 13 degrees Celsius

QUESTION 2 

What will your balance be if originally had R140 in the bank and then:

a) withdraw R90 

b) deposit R20 and then withdraw R50

c) withdraw R160 

d) withdraw R30 and then withdraw R90 

QUESTION 3

The first wheel was discovered in the year 1200BC . The first car was used in the year 2000AD. How many years passed between the discovery of the wheel and the use of the first car 

QUESTION 4 

QUESTION 5 

QUESTION 6 

Write the additive inverse of the following numbers:

a) 9

b) -130

QUESTION 7

a) 8+0 

b) (8*2) + (7*3) 

QUESTION 8