1. Tuesday, 16 February 2016 Integers

2. Tuesday, 16 February 2016 Learning Intention Success Criteria 2.Solving expressions showing working. 1.To explain the process of working out expressions by substitution method. 1.Understand process of substitution. Substitution Integers

3. Tuesday, 16 February 2016 1 If a = 2 and b = 14 evaluate a + b 2+14= =16 Sub in a=2 Sub in b=14 Substitution Integers

4. Tuesday, 16 February 2016 If a = 3 and b = -9 evaluate a - b Remember “- -” replace by “+” 3-(-9)= =3 + 9 2 Substitution =12 Integers

5. Tuesday, 16 February 2016 If a = 5 and b = 6 evaluate 1.a + b 2.ab 3.3a 4.b - a 5.4b 6.3ab =11 =30 =15 =1 =24 =90 Substitution Integers

6. Tuesday, 16 February 2016 Now complete page 28 Ex 5.1 Q1 – Q4 Page 30 Investigation Substitution Integers Letters and Numbers extension