Lesson 4 Write Three-digit Numbers
Let’s represent three-digit numbers using base-ten numerals.
Warm-up How Many Do You See: Blocks
How many do you see and how do you see them?
Activity 1 Place Value Riddles
Solve each riddle and write the three-digit number. Use the table to help you organize the digits.
riddle | hundreds | tens | ones | three-digit number |
---|---|---|---|---|
1 | ||||
2 | ||||
3 | ||||
4 | ||||
5 | ||||
6 |
I have 2 ones, 7 tens, and 6 hundreds.
I have 3 ones, 5 tens, and 2 hundreds.
I have 7 hundreds, 5 ones, and 3 tens.
I have 5 hundreds, no tens, and 9 ones.
I have 4 ones, 6 tens, and 3 hundreds.
I have 8 tens, 1 hundred, and no ones.
Activity 2 Mixed-up Digits
Find the number that makes each equation true. Use base-ten blocks or diagrams if they help.
4 hundreds
6 tens 2 ones 7 ones
2 hundreds 6 tens 3 tens
5 hundreds 325
hundreds ones tens 70
300 2 836
6 800 Clare and Elena worked to find the number that makes the equation true:
7 ones
3 hundreds . They wrote different answers.
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Clare wrote 7 ones
3 hundreds 37. -
Elena wrote 7 ones
3 hundreds 307.
Who do you agree with? Explain.
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Practice Problem
Problem 1
What three-digit number has 5 hundreds, 1 ten, and 6 ones?
What three-digit number has 6 tens, 1 hundred, and 5 ones?
What three-digit number has 1 one, 5 tens, and 6 hundreds?