Adding Three Small Numbers
Add three one-digit numbers using strategies including looking for pairs that make 10
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Teaching Table · Plan outline
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“If your child needs to add 4 + 6 + 8, can they spot that 4 and 6 make 10 first, then add 8 to get 18 — rather than just adding in order from left to right?”
Full guide and materials
- Activity. Add three one-digit numbers using strategies including looking for pairs that make 10
What to notice. Calculate 5 + 7 + 3 by first adding 7 + 3 = 10, then 5 + 10 = 15 • Add any three single-digit numbers correctly • Identify useful pairs within three addends to make the calculation easier
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If your child needs to add 4 + 6 + 8, can they spot that 4 and 6 make 10 first, then add 8 to get 18 — rather than just adding in order from left to right?
Add three one-digit numbers using strategies including looking for pairs that make 10
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Check understanding
- Calculate 5 + 7 + 3 by first adding 7 + 3 = 10, then 5 + 10 = 15
- Add any three single-digit numbers correctly
- Identify useful pairs within three addends to make the calculation easier
“If your child needs to add 4 + 6 + 8, can they spot that 4 and 6 make 10 first, then add 8 to get 18 — rather than just adding in order from left to right?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 6–7
Standards