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Study with Ghada› Math Fifth Grade, Primary› Unit 1

Lesson ⁦1-6⁩: Order Numbers and Decimals

Math · Fifth Grade, Primary · Unit 1: Place Value · First Semester

A 10-question quiz; after every question you'll see the right answer with an explanation.
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What will you learn in this lesson?

Students order a set of whole numbers or decimals from least to greatest or greatest to least by comparing places. Ordering helps in reading tables and sports results.

  • Orders whole numbers from least to greatest and greatest to least
  • Orders decimals using place value
  • Uses a number line to check the order

💡 Tip: Write the numbers one under the other with the decimal points lined up, and fill in any missing places with zeros before ordering.

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Worked examples from the Order Numbers and Decimals lesson questions

Order the following numbers in ascending order: 4,325, 4,352, and 4,235.
  • 4,235 ، 4,325 ، 4,352
  • 4,352 ، 4,325 ، 4,235
  • 4,325 ، 4,235 ، 4,352
  • 4,235 ، 4,352 ، 4,325
✓ 4,235 ، 4,325 ، 4,352
Ascending means from least to greatest: in the hundreds 2 < 3, and between 4,325 and 4,352, in the tens 2 < 5.
Order the following numbers in descending order: 0.65, 0.07, and 0.7.
  • 0.7 ، 0.65 ، 0.07
  • 0.07 ، 0.65 ، 0.7
  • 0.65 ، 0.7 ، 0.07
  • 0.7 ، 0.07 ، 0.65
✓ 0.7 ، 0.65 ، 0.07
We write them with two places: 0.70, 0.65, and 0.07, and in descending order from greatest to least: 0.70, then 0.65, then 0.07.
Show more examples (3)
Order the following numbers in ascending order: 2.5, 2.05, and 2.55.
  • 2.05 ، 2.5 ، 2.55
  • 2.5 ، 2.05 ، 2.55
  • 2.55 ، 2.5 ، 2.05
  • 2.05 ، 2.55 ، 2.5
✓ 2.05 ، 2.5 ، 2.55
We write them as 2.50, 2.05, and 2.55, so the order from least is: 2.05, then 2.50, then 2.55.
Ascending order means ordering numbers from least to greatest.
✓ True
True; descending order is from greatest to least.
The numbers 1.2, 1.15, 1.09 are in descending order.
✓ True
True; 1.20 > 1.15 > 1.09, so they are ordered from greatest to least.

FAQ about the Order Numbers and Decimals lesson

What is the difference between ascending and descending order?

Ascending goes from least to greatest, and descending goes from greatest to least. An ascending example: 2.05, then 2.5, then 2.55.

How do I order 0.65, 0.07, and 0.7 from greatest to least?

Write them with two places: 0.65, 0.07, and 0.70. The descending order is 0.7, then 0.65, then 0.07.

How do I study the lesson Order Numbers and Decimals and test myself on it?

Start the lesson quiz on Study with Ghada: 10 questions from the Math Fifth Grade, Primary question bank. After each answer you'll see the right answer with an explanation, and any questions you miss move to “Review my mistakes” until you master them.

Are Study with Ghada quizzes free and aligned with the curriculum?

Yes, completely free. They're built on the Math - Grade 5 - Semester 1 lessons in the same order as the book, and every question is reviewed and approved by a teacher before students see it.

Unit 1 lessons: Place Value

⁦1-1⁩ Place Value Through Billions ⁦1-2⁩ Compare Numbers ⁦1-3⁩ Model Decimals ⁦1-4⁩ Place Value Through Thousandths ⁦1-5⁩ Compare Decimals ⁦1-7⁩ Problem-Solving Strategy: Guess and Check All Math Fifth Grade, Primary lessons →
← ⁦1-5⁩ Compare Decimals ⁦1-7⁩ Problem-Solving Strategy: Guess and Check →