Counting On
Aligned to 1.OA.C.5 — Common Core State Standards for Mathematics.
What this lesson teaches
To add a small number, we can start at the bigger number and count up.
Worked example
6 + 3. Start at 6, then count up 3: 7, 8, 9. So 6 + 3 = 9.
Practice questions
- Solve 7 + 2 by counting on.
- Solve 5 + 3 by counting on.
- Start at 8 and count on 2. What number do you land on?
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
Contar hacia adelante
Para sumar un número pequeño, podemos empezar en el número más grande y contar hacia adelante.
Ejemplo: 6 + 3. Empieza en 6, luego cuenta 3 más: 7, 8, 9. Así que 6 + 3 = 9.
More Operations & Algebraic Thinking lessons
Adding and Subtracting within 201.OA.C.6Story Problems1.OA.A.1Adding Three Numbers1.OA.A.2Add in Any Order1.OA.B.3Subtract by Thinking Addition1.OA.B.4Is It True or False?1.OA.D.7
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