Hands-On
Can you use base-ten blocks and expanded form?
Goal:
Goal:
Practice!
Goal: Use base-ten blocks to compare large numbers.
Can you compare numbers using blocks? Get out 18 flats, 18 rods, and 18 cubes. Let’s make numbers on the place-value chart page . Then, we will use the expanded forms to find the larger number!
Hands-On
Which number is larger? 453 or 471?
453
471
How many flats, rods, and cubes do we need to make 453?
4 flats, 5 rods, and 3 cubes.
How many flats, rods, and cubes do we need to make 471?
4 flats, 7 rods, and 1 cube.
Now we can put the blocks on place-value charts.
453
471
We need to write each number in expanded form.
What is the expanded form of 453?
- 400 + 70 + 1
- 400 + 50 + 3
- 400 + 30 + 5
Sorry, that was not correct. The expanded form of 453 is 400 + 50 + 3.
That’s right! The expanded form of 453 is 400 + 50 + 3.
Sorry, that was not correct. The expanded form of 453 is 400 + 50 + 3.
What is the expanded form of 471?
- 400 + 70 + 1
- 400 + 50 + 3
- 400 + 10 + 7
That’s right! The expanded form of 471 is 400 + 70 + 1.
Sorry, that was not correct. The expanded form of 471 is 400 + 70 + 1.
Sorry, that was not correct. The expanded form of 471 is 400 + 70 + 1.
Summary
Questions answered correctly:
Questions answered incorrectly:
Both have 400 in the hundreds place. 453 has 50 and 471 has 70 in the tens place. 70 > 50. 471 > 453.
Which place helps you compare 471 and 453?
- hundreds
- tens
- ones
Sorry, that was not correct. 453 and 471 have the same hundreds. You need to use the tens to compare them!
Yes! 453 and 471 have the same hundreds. You need to use the tens to compare them!
Sorry, that was not correct. 453 and 471 have the same hundreds. You need to use the tens to compare them!
Summary
Questions answered correctly:
Questions answered incorrectly:
Use this page to practice using blocks to compare large numbers! When you are done, turn in your assignment to your teacher with your Weekly Written Work.
Find the Larger Number