Term 2 PART 1

Mary has 20 marbles, which is 25% of all the marbles she owns. How many marbles does Mary own in total?

• 5

• 80

• 25

• 45

In a class of 30 students, 20% of them are left-handed. How many students in the class are left-handed?

• 6

• 20

• 10

• 14

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. If a marble is drawn randomly from the bag, what is the probability of selecting a blue marble?

• 7/10

• 1/3

• 3/10

• 1

A spinner has six equal sections, numbered 1 to 6. What is the probability of spinning an even number?

• 1/6

• 2/3

• 1/3

• 1/2

Write the next two terms in the following sequence: 3, 6, 10, 15, ___ , ___ .

• 21, 28

• 20, 26

• 20, 25

• 30, 60

If 5 apples cost $2.50, what is the cost of one apple? (Let x be the cost of one apple.)

• 5

• 0.5

• 12.5

• 0.05

The length of a rectangle is twice its width. If the width is x cm, what is the length? (Let L be the length of the rectangle.)

• 2+x

• x/2

• 2x

• x^2

Write an abbreviation for the expression "7 times a number plus 10."

• 7/n+10

• 7+10n

• 7+10/n

• 7n+10

If a = 8 and b = 6, what is the value of a + b/2?

• 11

• 10

• 20

• 22

If a = 10 and b = 4, what is the value of a - 2b?

• 16

• -2

• 2

• -16