Second Grade · Math · week 4

Building and reading big numbers

Build and read 3-digit numbers, naming the value of each digit by its place.

Every 3-digit number has a hundreds place, a tens place, and a ones place. The place a digit sits in tells you its value, not just the digit itself.

In the number 583, the 5 means 5 hundreds, the 8 means 8 tens, and the 3 means 3 ones. Say it as "five hundred eighty-three."

📋 For the teacher
Teach it (10–15 min):
  • Point to each digit and ask "what place is this?" before asking its value -- place first, value second.
  • Practice reading numbers out loud from mail, receipts, or house numbers.
  • Watch for numbers with a zero in the tens place (like 508) -- say "five hundred eight," not "five hundred zero eight."
  • Have them write a number as you say it out loud, and say a number as they write it.
Talk about it:
  • How do you know the value of a digit just by looking at where it sits?
  • Why do we not say "zero" out loud in 508?
  • Can you find a 3-digit number somewhere in the house and read it to me?

Mastery looks like: They read and write any 3-digit number and state the value of each digit by its place.

Common stumbles: Saying the zero out loud ("five hundred zero eight"); mixing up the hundreds and tens places.

Homework for this lessonType it, write it with a stylus, or print it for pencil & paper.open →
Records attendance + 15 min of Math for this learner.
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