Numbers & Algebra

Factors & Multiples 1

100

What is the missing number?

12 ×____ = 24

2

200

What are the factors for 8?

1, 2, 4, 8

300

The first 3 multiples of 6 are___ , ___ , ___

6, 12, 18

400

Which number is the wrong multiple for the sequence 7, 14, 20, 28, 35?

20

500

What is the smallest positive integer which has exactly 3 factors?

4

Factors & Multiples 2

100

Find the highest common factor (HCF) of 2 and 6.

2

200

Find the lowest common multiple (LCM) of 2 and 3.

6

300

Find the highest common factor (HCF) of 12 and 13.

1

400

Find the lowest common multiple (LCM) of 4 and 6.

12

500

Find the highest common factor (HCF) of 12, 15, and 30.

3

Fraction

100

The numerator of 12/13 is: ____________

12

200

Write an equivalent fraction for 2/3

4/6

300

Which one of the following is not a proper fraction?

1/4, 6/7, 3/2, 8/10

3/2

400

Simplify 12/18

2/3

500

Which one is the biggest: 6/7, 7/8 or 8/9?

8/9

Decimal

100

Express 3/10 as a decimal

0.3

200

Round 23.56 to 1 decimal place

23.6

300

Which one is larger: 0.107 or 0.171?

0.171

400

Round 17.4398 to 2 decimal places

17.44

500

Round 34.71289 to 3 decimal places

34.713

Percentage

100

Convert 17% to a fraction

17/100

200

Convert 25% to a decimal

0.25

300

Convert 3/50 to a percentage

6%

400

Convert 0.275 to a percentage

27.5%

500

Is the following statement true or false?

1/5=15%

False