1. Year 5 Autumn Addition and subtraction
Unit 1: Column addition with 4-digit and 5-digit numbers
Objectives
Day 1: Use written addition to add pairs of 4-digit numbers.
Day 2: Use written addition to add pairs of 5-digit numbers.
Before teaching, be aware that:
On Day 1 children will need mini-whiteboards and pens.
Year 5 Addition and Subtraction

2. Unit 1: Column addition with 4-digit and 5-digit numbers
Objective
Day 1: Use written addition to add pairs of 4-digit numbers.
Year 5 Addition and Subtraction

3. How did you agree your order?
Day 1: Use written addition to add pairs of 4-digit numbers.
Each number could be rounded to the nearest 1000 to give an approximation, in which case the first and last would have the same approximation.
Or each could be rounded to the nearest 100, and then knowledge of adding pairs of 2-digit numbers be used to find more accurate approximations.
: = 6000
: = 6300
: = 5800
Which do you think will have the biggest answer and which do you think will have the smallest answer?
Talk to your partner and agree an order without working out the answers.
How did you agree your order?
Year 5 Addition and Subtraction

4. Remember to leave a blank row above the answer line.
Day 1: Use written addition to add pairs of 4-digit numbers.
Now let’s find the exact total for using compact column addition.
Add the 100s.
Add the 1000s.
Add the 10s.
Add the 1s.
Remember to leave a blank row above the answer line.
How does this compare with your estimate? 3 1 1 5 5 9
When choosing which children will work out each of the second and third additions, bear in mind that the second addition is more difficult than the third.
Children can now go on to do one of Hamilton’s differentiated GROUP ACTIVITIES, which you will find on the TEACHING AND GROUP ACTIVITIES download.
WT/ARE: Discuss which additions of 4-digit numbers are easy/quick to do and which are harder/slower to do and why.
GD: Teach children how to add pairs of 5-digit numbers.
Half the class work out
And the other half find
Year 5 Addition and Subtraction

5. Day 1: Use written addition to add pairs of 4-digit numbers.
The Practice Sheet on this slide is probably suitable for most children.
Download all differentiated PRACTICE WORKSHEETS from this unit’s PROCEDURAL FLUENCY box.
WT: Do the first 8 questions and use expanded addition if necessary.
ARE: Use compact column addition to work out as many answers as they can starting at question 5.
Year 5 Addition and Subtraction

6. Unit 1: Column addition with 4-digit and 5-digit numbers
Objective
Day 2: Use written addition to add pairs of
5-digit numbers.
Year 5 Addition and Subtraction

7. Day 2: Use written addition to add pairs of 5-digit numbers.
Roughly how many people visited the website on Sunday (am and pm)?
HINT! Round to the nearest thousand, then add the 2-digit numbers of 1000s (36,000 and 57,000).
Now let’s find the exact total using compact column addition. 3 1 1 1 9 9
How does this compare with your estimate?
Year 5 Addition and Subtraction

8. Day 2: Use written addition to add pairs of 5-digit numbers.
Roughly how many people visited the website on Monday (am and pm)?
Now let’s find the exact total using compact column addition. 4 1 4 1 1 1
Children can now go on to do one of Hamilton’s differentiated GROUP ACTIVITIES, which you will find on the TEACHING AND GROUP ACTIVITIES download.
WT: Use digits 1 to 8 to create two 4-digit numbers, aiming for a total between 6000 and 8000.
ARE/GD: Use a place value chart to generate 5-digit numbers to add. 4
How does this compare with your estimate?
Year 5 Addition and Subtraction

9. Day 1: Use written addition to add pairs of 5-digit numbers.
The Practice Sheet on this slide is probably suitable for most children.
Download all differentiated PRACTICE WORKSHEETS from this unit’s PROCEDURAL FLUENCY box.
WT: Children add use column addition to add pairs of 4-digit numbers, and are prompted to make some estimates first.
ARE/GD: Children find the total number of hits on the other days.
Year 5 Addition and Subtraction

10. Addition and Subtraction
Year 5 Autumn
Addition and Subtraction
Well done! You’ve completed this unit on column addition with 4-digit and 5-digit numbers.
Objectives
Day 1: Use written addition to add pairs of 4-digit numbers.
Day 2: Use written addition to add pairs of 5-digit numbers.
You can now use the Mastery: Reasoning and Problem-Solving questions to assess children’s success across this unit. Go to the next slide.
Year 5 Addition and Subtraction

11. Addition and Subtraction Unit 1
Problem solving and reasoning questions   
Fill in the missing digits:
Write an addition of two 5-digit numbers using the digits 4, 5 and 6 where the answer is 70,000.
 What mistake has Tom made in this addition?
  36, = 3,141,385
Year 5 Addition and Subtraction