Counting to 120
Aligned to 1.NBT.A.1 — Common Core State Standards for Mathematics.
What this lesson teaches
We can start counting at any number and keep going in order all the way up.
Worked examples
Example 1
Start at 47 and count on: 48, 49, 50, 51. The numbers go up by one each time.
Example 2
Start at 98 and count on: 99, 100, 101, 102. The count keeps going right past 100.
Example 3
Start at 115 and count on: 116, 117, 118, 119, 120. Counting to 120 means the tens keep going — 110, 111, 112 — just like the smaller numbers did.
Practice questions
- Count on from 30: write the next three numbers.
- What number comes right after 99?
- Start at 116 and count to 120.
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 hasta 120
Podemos empezar a contar en cualquier número y seguir en orden hasta arriba.
Ejemplo 1: Empieza en 47 y sigue contando: 48, 49, 50, 51. Los números suben de uno en uno.
Ejemplo 2: Empieza en 98 y sigue contando: 99, 100, 101, 102. El conteo sigue de largo después del 100.
Ejemplo 3: Empieza en 115 y sigue contando: 116, 117, 118, 119, 120. Contar hasta 120 significa que las decenas siguen — 110, 111, 112 — igual que los números más pequeños.
More Number & Operations in Base Ten lessons
Teach this lesson today
An AI tutor that guides with questions instead of just giving answers — all K–12 core subjects, every child in the family.
Start free — no card required