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Teaching Tips
- 1
Start with single-digit sums before moving to two-digit.
- 2
Use carrying problems to build place-value understanding.
- 3
Three-addend problems prepare students for mental math.
Grade Level Guide
K – 1Single-digit, no carry
Grade 22-digit, no carry
Grade 32-digit with carry
Grade 4+3-4 digit, multi-addend