1. Written Addition – Objectives
Use written column addition to add amounts of money.
You will need:
Mini whiteboards
© Hamilton Trust Keeping Up Term Week 2 Day 2

2. Written Addition – Direct Teaching
Step 1: Write the numbers in columns, one above the other.
£10s £1s . 10p 1p .
Step 2: Add the 1p column. Write the extra 10p in the 10ps column.
£10s £1s . 10p 1p 1
Carefully talk through the carrying of the 10p from one column to the next.
Hints: Leave a space before drawing the lines. Write the decimal point in the answer so you don’t forget it later.
© Hamilton Trust Keeping Up Term Week 2 Day 2

3. Written Addition – Direct Teaching
Step 3: Add the 10ps, including the extra 10p. Write the extra pound in the £1s column.
£10s £1s . 10p 1p
Step 4: Add the £1s, writing the extra ten pounds in the £10 column.
£10s £1s . 10p 1p
Carefully talk through the carrying of the £1 and £10 from one column to the next.
© Hamilton Trust Keeping Up Term Week 2 Day 2

4. Written Addition – Direct Teaching
Step 5: Add the £10s, remembering to add any extra £10s carried across.
£10s £1s . 10p 1p
= £72.34
Don’t forget the £ symbol on the final answer.
Hint: Check that your answer looks reasonable!
© Hamilton Trust Keeping Up Term Week 2 Day 2

5. Written Addition – Student Activity
Find the total price of the most expensive MP3 player and headphones, and the cheapest pair of items.
MP3 player 1
£31.95
Headphones A
£12.49
MP3 player 2
£46.27
Headphones B
£21.67
MP3 player 3
£110.45
Headphones C
£32.75
MP3 player 4
£78.79
Headphones D
£45.29
Take feedback and agree the two total prices (Most expensive = 3 + D = £ Cheapest = 1 + A = £44.44) Discuss as necessary.
Students write on mini whiteboards or in back of books.
© Hamilton Trust Keeping Up Term Week 2 Day 2

6. Written Addition – Individual Practice
MP3 player 1
£31.95
Headphones A
£12.49
MP3 player 2
£46.27
Headphones B
£21.67
MP3 player 3
£110.45
Headphones C
£32.75
MP3 player 4
£78.79
Headphones D
£45.29
Which pairs of items could you buy with a budget of:
£50
£70
£100?
Students write on mini whiteboards or in back of books.
Watch out for students who:
Do not know pairs for every number up to 20 by heart and so have to work out each individual addition on their fingers when carrying out a written addition of three- or four-digit numbers;
Make place value errors when using a written method (return to the expanded layout if necessary);
Do not apply their knowledge of number bonds of single-digit numbers to adding multiples of 10 and 100, i.e. don’t use the knowledge than 8 and 6 is 14 to add 80 and 60.
© Hamilton Trust Keeping Up Term Week 2 Day 2