Adding two two-digit numbers
Add and subtract two two-digit numbers using concrete objects, pictorial representations, and mental methods
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1590 concepts · 8 subjects
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Teaching approaches
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1 approach
Can your child add or subtract two two-digit numbers — like '43 + 28' — using counters, a drawing, or working it out in their head?
Add and subtract two two-digit numbers using concrete objects, pictorial representations, and mental methods
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Check understanding
- Calculate 34 + 27 using base-ten blocks or column addition
- Calculate 63 − 28 using a number line or partitioning
- Explain a strategy for adding or subtracting two two-digit numbers
“Can your child add or subtract two two-digit numbers — like '43 + 28' — using counters, a drawing, or working it out in their head?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 6–7
Standards