STUDENT SHEET

Hundreds, Tens, and Ones

Grade 2 · Lesson 5 · Dimensions 2A p.16
Math Book 2 · sheet 5
Warm-up — yesterday: Comparing Tens and Ones
Which is greater, 47 or 74?

What we are learning

Ten tens make one hundred, and a three-digit number is hundreds, tens and ones — the same idea one place further along.

How it is done — keep this beside you

These steps stay on your page while you work. If you get stuck, find the step you are on and read it again before you put your hand up.

1
Ten bundles of ten.
[10]×10
2
I band them together. That is one hundred.
[10]×10 [100]
3
Two hundreds.
[10]×10 [100] [100] [100]
4
Add three tens.
[10]×10 [100] [100] [100] [100] [100] [10] [10] [10]
5
And five ones. Two hundreds, three tens, five ones.
[10]×10 [100] [100] [100] [100] [100] [10] [10] [10] 235

Practice

I DOteacher builds it, nothing erased
How many hundreds, tens and ones in 416?
  1. 4 hundreds.
  2. 1 ten.
  3. 6 ones.
  4. 416 = 4 hundreds 1 ten 6 ones
WE DO 1together, on whiteboards
How many hundreds, tens and ones in 528?
Name all three places, in order. Boards up.
WE DO 2together, on whiteboards
How many hundreds, tens and ones in 307?
Say every place, even the empty one.
YOU DOindependent, from the book
Book 2A p.16 — the Do section, clipped onto the slide
the book page
Ask yourself: “Have I named every place, including the empty one?”