ES: Application of Number: Formula - Level 2

ES: AON: Formula

1. Formula level 2 Application of Number Unit 1 Leigh McQuaid

2. Learning Intentions Understand how to use simple formulae Substitute numbers and letters in simple formula

3. Formula C = A - B Where: A = 5 B = 2 C = 5 – 2 C = 3

4. Formula E = F + G Where: F = 205 G = 112 E = 205 + 112 E = 317

5. Formula H = JK Where: J = 10 K = 3 H = 10 x 3 H = 30 When parts of the formula are side by side, we multiply eg. H = J x K

6. Formula L = MNO Where: M = 3 N = 4 O = 5 L = 3 x 4 x 5 L = 60 When parts of the formula are side by side, we multiply eg. L = M x N x O

7. Formula P = Where: Q = 20 R = 4 P = 20 ÷ 4 P = 5 The line in the fraction is a divide line, therefore: P = Q ÷ R Q R

8. Formula S = Where: T = 120 U = 20 S = 120 ÷ 20 P = 6 The line in the fraction is a divide line, therefore: S = T ÷ U T U

9. Formula A = Where: B = 28 C = 7 D = 3 A = 28 – 7 ÷ 3 A = 21 ÷ 3 A = 7 All of these methods can be combined A = B - C ÷ D B - C D

10. Formula E = FG - H  Where: F = 2 G = 8 H = 6 E = 2 x 8 - 6 E = 16 - 6 E = 10 All of these methods can be combined E = F x G - H

11. Formula J = K(L+M)  Where: K = 2 L = 11 M = 8 J = 2 x (11 + 8) J = 2 x 19 J = 38 When there are brackets in a formular, work out that part first J = K x (L+M)

12. Learning Intentions Understand how to use simple formulae Substitute numbers and letters in simple formula