Back to Roadmap Daily Lesson
Numbo
Learn with Numbo

Day 5 · Adding 3-Digit Numbers (No Regrouping)

Today let's learn to add 3-digit numbers!

One step at a time

Let's explore today's lesson

3 learning moments

Adding 3-digit numbers is just like 2-digit numbers, but now we have hundreds too! Always start adding from the ones place.

120 + 350 = 470 — add ones with ones, tens with tens, hundreds with hundreds.

Activity: Try adding two 3-digit numbers that don't need carrying, like 231 + 456.

Practice and save your progress

Great work—keep the momentum going!