James - Maths - Quiz 3

How do we find 1% of a number?

• divide by 1

• divide by 10

• divide by 100

• multiply by 10

Answer explanation

Percentages are always out of 100.

100% = the full amount

1 % = the whole divided by 100

How do we find 10% of a number?

• divide by 1

• divide by 10

• divide by 100

• multiply by 10

Answer explanation

Percentages are always out of 100.

100% = the full amount

1 % = the whole divided by 100

10 % = the whole divided by 10

What is 10% of 50?

• 5

• 10

• 20

• 15

Answer explanation

10% of 50 = 50 divided by 10 = 5

What is 1% of 20?

• 2

• 0.2

• 0.02

• 200

Answer explanation

20 divided by 100 = 0.2

If 10% of a number is 15, what must 20% be?

• 7.5

• 30

• 20

• 50

What do the angles in a triangle add up to?

• 180 degrees

• 360 degrees

• 270 degrees

• 120 degrees

What do the angles in a quadrilateral add up to?

• 180 degrees

• 360 degrees

• 270 degrees

• 120 degrees

If 20% of a number is 6, what is the full amount?

• 25

• 30

• 35

• 40

Answer explanation

20% = 1/5 because 100 divided by 5 = 20

If 20% = 6, we do 6 x 5 to find 100% so 100% is 30.

If 2.2lbs = 1kg, how many pounds are there in 5kg?

• 11

• 10.2

• 15.5

• 13.6

If 10% of a number is 8, what is 25%?

• 16

• 20

• 25

• 160