Subtract multiples of powers of 10 crossing the millions boundary
I can subtract multiples of powers of 10 crossing the millions boundary.
Subtract multiples of powers of 10 crossing the millions boundary
I can subtract multiples of powers of 10 crossing the millions boundary.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Powers of 10 and their multiples can be subtracted using the language of unitising.
- Known facts can be used alongside unitising to subtract powers of 10 and their multiples.
- Subtraction of powers of 10 and their multiples can be represented on a number line.
Keywords
Million - One million is composed of one thousand thousands. 1,000 × 1,000 = 1,000,000 We write one million as a one followed by six zeros.
Unitise - When we unitise, we treat groups that contain, or represent, the same numbers of things as ‘units’ or ‘ones’.
Power of 10 - A power of 10 is when 10 is multiplied by itself a certain number of times.
Common misconception
Children may struggle with the language of unitising.
Encourage children to read aloud and spot what they notice - which known fact can they see - what is the same/different?
Licence
This content is © Oak National Academy Limited (2024), licensed on
Lesson video
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Starter quiz
6 Questions
1,100
1,000
900
800
700
1,900
19,000
190
19
190,000
Exit quiz
6 Questions
1,000,000
900,000
800,000
700,000
600,000
3,000,000
3,900,000
3,990,000
3,999,000