Common Core: 1.OA.C.5
Problem 4 of 27g1-004
What number is one more than 15?
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The walkthrough opens once you check an answer.
Solution walkthrough0:43
- A full ten-frame is 10. Count on: 11, 12, 13, 14, 15.
- Add one more apple. 15 and one more is 16.
- One more is the very next number we count: 15, 16.
- One less goes back one: take the apple away and we are at 15 again. Well done!