integers

The arrangement of following integers 0, 8, -8, 10, -10 in descending order is

• 10, -10, 0, -8, 8

• 10, -8, 0, 8, -10

• 0, 8, 10, -8, -10

• 10, 8, 0, -8, -10

The truck driver drives 10km from South to North which also means

• 10km from East to West

• −10km from North to South

• 10km from West to East

• none of the above

Which letter best represents −22?

• B

• A

• D

• D

-5+(-6)=?

• 11

• -11

• -12

• 12

Ana has 4 stamps. She bought 8 stamps more and Mary borrowed two stamps from Ana. The total number of stamps Ana have are

• -12

• 12

• 10

• 8

If 20 + (15 + 18) = 53 then 18 + (15 + 20) =

• 53

• 52

• -52

• -33