Key Concepts Papers 2 and 3 Quiz 58

Write 0.09 as a percentage

• 30%

• 50%

• 9%

Answer explanation

The 9 is in the hundredths position, after the decimal point.

Write 0.4 as a percentage

• 50%

• 40%

• 10%

Answer explanation

Multiply by 100

Write 0.7 as a fraction

• 70%

Answer explanation

The 7 is in the tenths place, after the decimal point so it is 7 over 10.

• 60%

• 0.5

• 30%

• 10%

Convert 5.7 km to m

• 57

• 0.57

• 5700 m

• 570000 cm

Answer explanation

Times by 100, there are 1000 m in 1 km

Convert 3500 m to km

• 450000

• 0.35

• 0.3

• 3.5 km

Answer explanation

Divide by 1000, there are 1000 m in 1 km.

Convert 6.3 kg to g

• 3g

• 6300g

• 6 g

• 0.63 g

Answer explanation

Multiply by 1000, there are 1000 g in 1 kg.

• 8

• 0

• 2

• 4

Answer explanation

It means 2 x 2 x 2

Which one of the following numbers is a multiple of 4

• 6

• 3

• 8

• 15

Answer explanation

Multiple is a number that multiplies e.g. 4 x1 =4

4x 2= 8

4 x 3 = 12 etc

Which one of the following numbers is a factor of 15

• 2

• 5

• 10

• 20

Answer explanation

A factor is a number that divides evenly (no remainders)