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Grade 1 Math · World 3: Facts Farm · Level 15
Adding by Counting On
Add within 10, starting from the bigger number.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 15
- To add, you can start at one number and count on. 6 plus 2: start at 6, then count on 2 more: 7, 8.
- Your turn! Start at 5, and tap the number line to count on 3.
- What about 2 plus 7? Start at the bigger number, 7, and count on 2: 8, 9. That's quicker than counting on 7!
- Your turn! For 1 plus 8, start at 8 and tap to count on 1.
- Start at the bigger number, then count on the smaller one.
Georgia's K-12 Mathematics Standards:
- 1.NR.2.4 — Fluently add and subtract within 10 using a variety of strategies.