📚 Topic Summary
Ordering decimals means arranging them from least to greatest or greatest to least. When decimals have the same whole number part, we compare the digits after the decimal point. Start by comparing the tenths place, and if those are the same, move to the hundredths place. Understanding place value is key! Hundredths are like having 100 equal parts of one whole thing. So, 0.01 is one-hundredth, and 0.25 is twenty-five hundredths.
🗂️ Part A: Vocabulary
Match the term to its definition:
| Term |
Definition |
| 1. Decimal |
A. The position of a digit to the right of the decimal point (e.g., tenths, hundredths). |
| 2. Hundredth |
B. A way to represent numbers that are not whole numbers. |
| 3. Place Value |
C. One of 100 equal parts of a whole. |
| 4. Tenth |
D. The value of a digit based on its position in a number. |
| 5. Decimal Place |
E. One of 10 equal parts of a whole. |
(Match the numbers 1-5 to the letters A-E)
✍️ Part B: Fill in the Blanks
Use these words: greater, hundredths, less, tenths, decimals to fill in the blanks.
When ordering __________, start by looking at the whole number part. If the whole numbers are the same, compare the __________ place. If those are the same, compare the __________ place. The number with the __________ digit in the corresponding place is __________.
🤔 Part C: Critical Thinking
Explain in your own words how you would teach a younger student to order the following decimals: 0.45, 0.21, and 0.50. Give specific steps!
