Math4childrenplus.com

Number system

Exercises:

1. Write in order, the smallest first : 20, 19.5, 19 34

2. Which is larger :

3. Simplify the following by rationalising their denominators.

4. Write down the first five terms of the sequence whose nth terms are:

5. If calculate the value of

1316

or 2126

a) b) c) d)32

327

12

9322

d) 9 +23 + 22

a) 4n - 1 b) 2n 2

2a - b2a + b

12

=ab

Math4childrenplus.com

Number system

Exercises:

1. Write in order, the smallest first : 20, 19.5, 19 34

2. Which is larger :

3. Simplify the following by rationalising their denominators.

4. Write down the first five terms of the sequence whose nth terms are:

5. If calculate the value of

1316

or 2126

a) b) c) d)22

722

2

2 326

a) 3, 7, 11, 15, 19 b) 2, 8, 18, 32, 50

2a - b2a + b

12

=ab

Answers

1 23

3

1 12