STUDENT SHEET

Numbers to One Billion

Grade 5 · Lesson 1 · Dimensions 5A p.4
Math Book 5 · sheet 1
Warm-up — yesterday: Grade 4 — comparing large numbers
Which is greater, 84,060 or 84,600?

What we are learning

The places run in groups of three — ones, thousands, millions, billions — and each comma marks the end of a group.

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
A number with no commas is unreadable.
2438500000
2
Mark off three from the right.
2438500000 2438500,000
3
Three more.
2438500000 2438500,000 2438,500,000
4
Three more. Now the groups are visible.
2438500000 2438500,000 2438,500,000 2,438,500,000
5
Read the groups: two billion, four hundred thirty-eight million, five hundred thousand.
2438500000 2438500,000 2438,500,000 2,438,500,000 2,438,500,000

Practice

I DOteacher builds it, nothing erased
What is the value of the 6 in 6,204,000,000?
  1. Groups from the right: ones, thousands, millions, billions.
  2. The 6 is in the billions place.
  3. 6,000,000,000
WE DO 1together, on whiteboards
What is the value of the 3 in 1,350,000,000?
Mark the groups from the right first. Boards up.
WE DO 2together, on whiteboards
What is the value of the 7 in 40,700,000?
Count the groups — do not judge by how long it looks.
YOU DOindependent, from the book
Book 5A p.4 — the Do section, clipped onto the slide
the book page
Ask yourself: “Which GROUP is this digit in — and which place inside that group?”