Comparing and Ordering Numbers How do we know which number is largest?

What is a line?

That’s right! It goes on forever. That’s why it has those cute little arrows on the ends!

Number Line A number line is a line. It goes on forever.

Number Line If that is true, then what is the first number on a number line?

Number Line Is it ok to start at 20? 20

Number Line What about 200? 200

Number Line What number comes after 200 on a number line? 200

Number Line What number comes after 200 on a number line?

Number Line What number comes before 200 on a number line?

Number Line What number comes before 200 on a number line?

AWESOME You know that a line goes on forever. You know that a number line is the same as a line! You know that a number line can begin with any number. You know that the numbers go in order. Do you know everything? Hum…

Number Line Could a different number come after 200? Hint: skip count! 200

Number Line

Number Line Let’s look at some numbers. Where would you put them on this line?

Number Line

Number Line

Number Line

Number Line

Number Line

7001 Greatest to Least

7001 Greatest to Least

7001 Greatest to Least

7001 Greatest to Least

7001 Greatest to Least

7001 Greatest to Least

That was easy…

Try these numbers: 40,342 40,328 40,302 Hint: Write the numbers, lining up the spaces.

Try these numbers: 40,342 40,328 40,302

Try these numbers: 40,342 40,328 40,302 Begin at the left and compare.

Try these numbers: 40,342 40,328 40,302 Keep Keep going until the numbers are different.

Try these numbers: 40,342 40,328 40,302 Keep Keep going until the numbers are different.

Try these numbers: 40,342 40,328 40,302 4 > 2 2 > 0

Try these numbers: 345, , ,384 Work with your neighbors.

Try these numbers: 298, , ,908 Correct order

What about these numbers: 8,398,384 8,395,382 8,387,908 8,485,342