## Envision Math 3rd Grade Textbook Answer Key Topic 1.5 Ordering Numbers

Ordering Numbers

How can you order numbers?
When you order numbers, you write them from greatest to least or from least to greatest.

Question.
Three rivers are shown on the map. Write their lengths in order from greatest to least.

Guided Practice

Do you know HOW?
For 1 and 2, order the numbers from least to greatest.
Question 1.
769 679 697

Question 2.
359 368 45

For 3 and 4, order the numbers from greatest to least.
Question 3.
4,334 809 4,350

Question 4.
1,137 1,573 1,457

Do you UNDERSTAND?
Question 5.
Writing to Explain The length of another river has a 2 in the hundreds place. Can this river be longer than the Colorado? Why or why not?

Question 6.
Draw a place-value chart showing hundreds, tens, and ones. Write the numbers 315, 305, and 319 in the place-value chart. Use the place- value chart to write the numbers in order from greatest to least.

Independent Practice

Order the numbers from least to greatest.
Question 7.
6,743 6,930 6,395

Question 8.
995 1,932 1,293

Question 9.
8,754 8,700 8,792

Order the numbers from greatest to least.
Question 10.
2,601 967 2,365

Question 11.
3,554 3,454 3,459

Question 12.
5,304 5,430 5,403

The lengths of the rivers in order from greatest to least are:
Mississippi: 2,348 miles;
Missouri: 2,315 miles;

Problem Solving

Use the pictures for 13-16.

Question 13.
Which animal weighs 100 pounds more than a moose?

Question 14.
Number Sense A ton is equal to 2,000 pounds. Which animals weigh less than 1 ton?

Question 15.
Write the names of the animals in the order of their weights from least to greatest.16. Reasonableness Margo says the camel weighs about fifteen hundred pounds. Do you agree or disagree?

Question 16.
Reasonableness Margo says the camel weighs about fifteen hundred pounds. Do you agree or disagree?

Question 17.
Writing to Explain Describe how you would write the numbers below from least to greatest.
3,456 3,654 2,375

Question 18.
The grooves around the outside of some coins are called reeds. List the coins in the table in order from least to greatest number of reeds.