Use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
I can use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
Use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
I can use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
Lesson details
Key learning points
- Multiples of 10 have a zero in the ones column.
- A digit in the tens column is 10 times the value of a digit in the ones column.
- Multiplying by ten moves all the digits one column to the left making them ten times the size.
- When a number is multiplied by ten the product is a multiple of ten.
Common misconception
Many pupils believe that 'adding zero' is multiplying by 10 which can lead to difficulties later on when they are introduced to decimal numbers.
Don't dismiss it. It's a pattern that has been spotted and generalised. Do encourage the children to work with physical resources that don't involve the numbers themselves so they can understand that it isn't adding zero but changing place value.
Keywords
Placeholder - A placeholder is where we use the digit zero to hold a place in a number and maintain place value.
Magnitude - The magnitude of a number is its distance from zero.
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).
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