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BEGINNERMental Math
Adding by Making Tens
Rearrange numbers to form groups of 10 for faster mental addition
SSCIBPS
Look for numbers that add up to 10 or multiples of 10.
How It Works
0
Scan the numbers for pairs that make 10: (3+7), (4+6), (2+8), (1+9)
1
Group these pairs together
2
Add the tens first, then remaining numbers
Examples
📝 3 + 7 + 8 + 2 + 9 + 1 = (3+7) + (8+2) + (9+1) = 10 + 10 + 10 = 30
📝 2 + 5 + 8 + 3 + 7 = (3+7) + (2+8) + 5 = 10 + 10 + 5 = 25
Pro Tips
💡 This works great for adding receipts, scores, or any list of numbers!
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