📚 Topic Summary
Place value is all about understanding that the position of a digit in a number determines its value. In Grade 3, we focus on ones, tens, and hundreds. For example, in the number 365, the digit 5 is in the ones place, the digit 6 is in the tens place, and the digit 3 is in the hundreds place. This means we have 3 hundreds, 6 tens, and 5 ones.
Understanding place value helps us read, write, and compare numbers. It's also super useful when we start adding and subtracting bigger numbers! Let's put your knowledge to the test!
🔤 Part A: Vocabulary
Match the terms with their definitions:
| Term |
Definition |
| 1. Place Value |
A. The value of a digit based on its position in a number. |
| 2. Ones Place |
B. The position of the rightmost digit in a whole number. |
| 3. Tens Place |
C. The position of the second digit from the right in a whole number. |
| 4. Hundreds Place |
D. The position of the third digit from the right in a whole number. |
| 5. Digit |
E. A symbol used to represent a number (0-9). |
✍️ Part B: Fill in the Blanks
Complete the following paragraph using the words: hundreds, tens, ones, value, digit.
In the number 427, the 4 is in the __________ place, the 2 is in the __________ place, and the 7 is in the __________ place. The __________ of the 2 is 20 because it is in the tens place. Each __________ contributes to the overall number.
🤔 Part C: Critical Thinking
Explain why understanding place value is important when adding two 3-digit numbers. Give an example to support your answer.