# Simple Formulae

In this worksheet, students learn about and use simple algebraic formulae. Key stage:  KS 3

Curriculum topic:   Algebra

Curriculum subtopic:   Use Standard Mathematical Formulae

Difficulty level:   ### QUESTION 1 of 10

A formula tells you how to work out something given another piece of information.

The formula F = 1.8C + 32 is used to convert a temperature in Centigrade to one in Fahrenheit.

When C = 10, we substitute this value into the formula to get:

F = 1.8 x 10 + 32

F = 18 + 32

F = 50

This means that 10º C is the same as 50º F

Use the formula

B = A + 2

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
7
3
9
7
5
5
4

Use the formula

B = A - 2

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
0
3
1
7
3
5
5

Use the formula

B = 2A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
6
3
4
7
10
5
14

Use the formula

B = 4A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
20
3
12
7
8
5
28

Use the formula

B = 10 - A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
5
3
3
7
7
5
8

Use the formula

B = 2A + 1

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
-9
3
7
7
5
-5
15

Use the formula

B = 2A - 10

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
4
3
-20
7
-6
-5
-4

Use the formula

B = 3A + 10

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
16
3
31
7
19
-5
-5

Use the formula

B = 10 - 2A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
4
3
6
7
20
-5
-4

Use the formula

B = A ÷ 5 + 1

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

5
0
10
4
15
2
-5
3
• Question 1

Use the formula

B = A + 2

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
4
3
5
7
9
5
7
• Question 2

Use the formula

B = A - 2

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
0
3
1
7
5
5
3
• Question 3

Use the formula

B = 2A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
4
3
6
7
14
5
10
• Question 4

Use the formula

B = 4A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
8
3
12
7
28
5
20
• Question 5

Use the formula

B = 10 - A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
8
3
7
7
3
5
5
• Question 6

Use the formula

B = 2A + 1

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
5
3
7
7
15
-5
-9
• Question 7

Use the formula

B = 2A - 10

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
-6
3
-4
7
4
-5
-20
• Question 8

Use the formula

B = 3A + 10

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
16
3
19
7
31
-5
-5
• Question 9

Use the formula

B = 10 - 2A

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

2
6
3
4
7
-4
-5
20
• Question 10

Use the formula

B = A ÷ 5 + 1

to match the values of B (shown on the right) to the values of A (shown on the left)

## Column B

5
2
10
3
15
4
-5
0
---- OR ---- 