Math Quiz Grade 6-7

An Object makes 800 rev in 4 mins, find the rate in rev/min

• 804 rev/min

• 3200 rev/min

• 200 rev/min

• 796 rev/min

Change S25°W to a three digit bearing

(Hint: S means South and W means West)

• 245°

• 205°

• 180°

• 270°

A prefect is to be chosen from a class of 12 girls and 8 boys. What is the probability that the prefect is a girl.

• 3/5

• 2/5

• 1/5

• 4/5

Write 20.5 x 10^-⁵ in standard form

• 0.0025

• 0.00205

• 0.00025

• 0.000205

Convert 4 ten to base two

• 4 two

• 100 two

• 001 two

• 110 two

If x=7, evaluate 6+x-2x

• 13x

• -1x

• -13x

• 1x