New
New
Year 4
Use column addition to solve problems in different contexts
I can use column addition to solve problems.
New
New
Year 4
Use column addition to solve problems in different contexts
I can use column addition to solve problems.
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Lesson details
Key learning points
- The addends and sum are recorded in columns with the same value digits in the same column.
- When using column addition, start by adding the numbers with the smallest place value first.
- When there are missing addends, subtract the known part from the whole, or the known addend from the sum.
Keywords
Column addition - Column addition is a way of adding numbers by writing a number below another.
Common misconception
Pupils may find it challenging to lay out column addition where they are adding a 3-digit number and a 2-digit number.
Emphasise the place value. Continually ask the pupils, 'Where is the tens column? Where is the hundreds column? How many tens does this number have? How many hundreds does this number have?' so that they begin asking these questions themselves.
In this lesson, pupils solve problems using column addition. Task B involves the pupils finding two addends to make a sum. This could be developed so they create problems for each other (e.g. give a partner four sums and eight addends. Can your partner work out which two addends make each sum?)
Teacher tip
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
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6 Questions
Q1.
What is the missing sum in this column addition?
Q2.
What tens digit is missing from this column addition?
Q3.
What is the missing addend in this column addition?
Q4.
What hundreds digit is missing from this column addition?
Q5.
Use the digit cards. Set them out to make two 2-digit numbers. (Only use each digit card once.)
What is the smallest sum you can make?
Q6.
Use the digit cards. Set them out to make a 3-digit and a 2-digit number. (Only use each digit card once.)
What is the closest number to 300 you can make?
Exit quiz
Download exit quiz
6 Questions
Q1.
What is the missing sum in the column addition?
Q2.
What is the missing addend in this column addition?
Q3.
Which two numbers have a sum of 56?
22
23
Q4.
Which two numbers have a sum of 544?
224
322
Q5.
Alex scores 263 points and 316 points in a game. Which column addition has he written correctly to work out his total number of points?
Q6.
Three children each play a computer game twice. They add their two scores together to get a total. Work out who scored the highest number of points.
