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Daily Lesson
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
3 learning moments
Let's explore today's lesson

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