Place Value Power Slides
Grade 2 Math Review Place Value Adventure
Mastering Hundreds, Tens, & Ones!
Discover how base-ten blocks tell the story of 3-digit numbers. Look, think, draw, and solve!
100
Hundreds Flat
Worth 100 units
10
Tens Rod
Worth 10 units
1
Ones Cube
Worth 1 unit
Review • Part 1 Visual Building Blocks
Meet Your Base Ten Blocks!
Hundreds Place
1 Flat = 100
Made of 10 tens rods stuck together!
Tens Place
1 Rod = 10
Made of 10 tiny ones cubes stacked tall!
Ones Place
1
1 Cube = 1
A single unit block all by itself!
Review • Part 2 Position Matters
The 3-Digit Place Value Chart
H Hundreds
How many groups of 100?
T Tens
How many groups of 10?
O Ones
How many single units?
💡
Remember: Every digit gets its own room! You always read 3-digit numbers from left to right: Hundreds first, then Tens, then Ones!
Step-By-Step Guide Read Any Model Like a Pro
How to Read a Base Ten Model
Look at the Blocks:
2 Flats
3 Rods
5 Cubes
Standard Form: 235
1. Count the Hundreds Flats
2 flats = 200 (Write 2 in Hundreds place)
2. Count the Tens Rods
3 rods = 30 (Write 3 in Tens place)
3. Count the Ones Cubes
5 cubes = 5 (Write 5 in Ones place)
4. Combine Expanded Form
200 + 30 + 5 = 235
Important Trick! Place Value Trap
Watch Out for ZERO the Hero! 🦸♂️
Case A
No Tens Rods?
If there are 3 flats and 4 ones, but NO rods, write a 0 in the tens place!
NOT 34 ❌
304 ✅ (3 Hundreds, 0 Tens, 4 Ones)
Case B
No Ones Cubes?
If there are 2 flats and 5 rods, but NO cubes, write a 0 in the ones place!
NOT 25 ❌
250 ✅ (2 Hundreds, 5 Tens, 0 Ones)
Ready for the challenge? Get your pencil or whiteboard marker ready!
Challenge 1 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
Count each group carefully!
✏️ Student Drawing Zone Write or Draw
Use this space to sketch, write notes, or tally your count!
H
T
O
My Number:
Solution Reveal • Challenge 1 Did you get it right?
Counting the Blocks:
2 Hundreds Flats = 200
4 Tens Rods = 40
3 Ones Cubes = 3
The Secret Number is
243
200 + 40 + 3 = 243
🎉 Awesome work! Let's try Challenge 2!
Challenge 2 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
Look closely at the ones cubes!
✏️ Student Drawing Zone Write or Draw
Draw your tens and ones, or sketch your thoughts here!
H
T
O
My Number:
Solution Reveal • Challenge 2 Check your work!
Counting the Blocks:
1 Hundred Flat = 100
3 Tens Rods = 30
5 Ones Cubes = 5
The Secret Number is
135
100 + 30 + 5 = 135
🌟 Brilliant job! Ready for a tricky one with zero?
Challenge 3 of 10
What 3-digit number is shown?
Tricky Alert! ⚠️
Base Ten Blocks:
Hundreds
Tens
None!
Ones
Notice what column is completely empty!
✏️ Student Drawing Zone Write or Draw
What digit belongs in the empty tens place?
H
T
O
My Number:
Solution Reveal • Challenge 3 The Zero Hero!
Counting the Blocks:
3 Hundreds Flats = 300
0 Tens Rods (Empty!) = 0
6 Ones Cubes = 6
The Secret Number is
306
300 + 0 + 6 = 306
Zero held the tens place open!
🎯 If you wrote 306, you dodged the trap!
Challenge 4 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
None!
Are there any single units?
✏️ Student Drawing Zone Write or Draw
Sketch or write your place value equation!
H
T
O
My Number:
Solution Reveal • Challenge 4 Check your work!
Counting the Blocks:
4 Hundreds Flats = 400
2 Tens Rods = 20
0 Ones Cubes (Empty!) = 0
The Secret Number is
420
400 + 20 + 0 = 420
Zero ends the number!
🔥 Fantastic! Almost halfway through!
Challenge 5 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
Count those single units carefully!
✏️ Student Drawing Zone Write or Draw
Tally the ones in pairs of two to be sure!
H
T
O
My Number:
Solution Reveal • Challenge 5 Halfway Mark!
Counting the Blocks:
1 Hundred Flat = 100
5 Tens Rods = 50
8 Ones Cubes = 8
The Secret Number is
158
100 + 50 + 8 = 158
🎉 You're on fire! 5 challenges down, 5 to go!
Challenge 6 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
Lots of tens rods here! Count 10, 20, 30...
✏️ Student Drawing Zone Write or Draw
Count by tens: 10, 20, 30, 40, 50, 60, 70!
H
T
O
My Number:
Solution Reveal • Challenge 6 Check your work!
Counting the Blocks:
2 Hundreds Flats = 200
7 Tens Rods = 70
4 Ones Cubes = 4
The Secret Number is
274
200 + 70 + 4 = 274
🚀 Super mathematician skills! On to Challenge 7!
Challenge 7 of 10
What 3-digit number is shown?
Draw & Solve
Base Ten Blocks:
Hundreds
Tens
Ones
Big stack of hundreds flats! Count by 100s!
✏️ Student Drawing Zone Write or Draw
100, 200, 300, 400, 500...
H
T
O
My Number:
Solution Reveal • Challenge 7 Check your work!
Counting the Blocks:
5 Hundreds Flats = 500
1 Ten Rod = 10
2 Ones Cubes = 2
The Secret Number is
512
500 + 10 + 2 = 512
⭐ Five hundred twelve! You're an expert!
Challenge 8 of 10
What 3-digit number is shown?
Tricky Alert! ⚠️
Base Ten Blocks:
Hundreds
Tens
Ones
None!
Empty ones column again! What holds that place?
✏️ Student Drawing Zone Write or Draw
Don't forget the zero in the ones place!
H
T
O
My Number:
Solution Reveal • Challenge 8 Check your work!
Counting the Blocks:
3 Hundreds Flats = 300
6 Tens Rods = 60
0 Ones Cubes = 0
The Secret Number is
360
300 + 60 + 0 = 360
👏 Excellent! Only 2 challenges left!
Challenge 9 of 10
What 3-digit number is shown?
Tricky Alert! ⚠️
Base Ten Blocks:
Hundreds
Tens
None!
Ones
Look closely: are there any tens rods?
✏️ Student Drawing Zone Write or Draw
Remember the Zero Hero in the middle!
H
T
O
My Number:
Solution Reveal • Challenge 9 Check your work!
Counting the Blocks:
4 Hundreds Flats = 400
0 Tens Rods (Empty!) = 0
9 Ones Cubes = 9
The Secret Number is
409
400 + 0 + 9 = 409
⚡ Outstanding! Ready for the Grand Finale Challenge 10?
Grand Finale • Challenge 10
What 3-digit number is shown?
Final Boss Level! 👑
Base Ten Blocks:
Hundreds
Tens
Ones
Put all 3 places together for the grand finale!
✏️ Student Drawing Zone Write or Draw
Write your full expanded form and standard number!
H
T
O
My Number:
Solution Reveal • Grand Finale The Big Reveal!
Counting the Blocks:
6 Hundreds Flats = 600
3 Tens Rods = 30
7 Ones Cubes = 7
The Secret Number is
637
600 + 30 + 7 = 637
🏆 Six hundred thirty-seven! You completed all 10 challenges!
Place Value Champion Badge Earned!
You Are a Place Value Superstar! 🌟
You can count hundreds flats, tens rods, and ones cubes to read any 3-digit number.
100s
Count the big flats first!
10s
Count the tall rods next!
0 Hero
Zero holds empty places!
Great job today, 2nd Grade Math Masters!
Base Ten Explorer Worksheet
Grade 2 Math Place Value Review
Base Ten Explorer Worksheet
Name:
Date:
Block Key:
1 Flat = 100
1 Rod = 10
1 Cube = 1
1 Count the blocks, fill in the place value chart, and write each number.
Problem 1 Count the blocks
Hundreds
Tens
Ones
Expanded: _____ + _____ + _____
Standard Form:
Problem 2 Count the blocks
Hundreds
Tens
Ones
Expanded: _____ + _____ + _____
Standard Form:
Problem 3 Tricky! ⚠️
Watch the empty spot!
0 Rods
Hundreds
Tens
Ones
Expanded: _____ + _____ + _____
Standard Form:
Problem 4 Tricky! ⚠️
What ends this number?
0 Ones
Hundreds
Tens
Ones
Expanded: _____ + _____ + _____
Standard Form:
Turn the page for drawing challenges & mystery riddles! Page 1 of 2
Part 2: Draw the Blocks & Solve Mysteries
Name:
Drawing Quick Code:
Draw a Square = 100 Draw a Line = 10 Draw a Dot = 1
2 Draw quick base-ten blocks to model each number.
Number 342
H: ___ T: ___ O: ___
___ + ___ + ___ = 342
Draw Your Model Here:
Number 205
H: ___ T: ___ O: ___
___ + ___ + ___ = 205
Draw Your Model Here (Check the tens!):
3 Place Value Detective Challenges
Mystery Riddle 🔍
"I have 5 hundreds, 7 tens, and 3 ones. Who am I?"
Show your thinking: 500 + _____ + _____ = _________
I am:
Spot the Mistake! 🕵️
Maya is Correct Maya is Incorrect
Maya counted a model with 2 hundreds flats and 4 ones cubes (no tens rods). She wrote down the number 24.
Explain why Maya made a mistake and what the real number is:
How do you feel about 3-digit numbers?
😊 Got It! 🤔 Almost 🙋 Need Help
Score: / 8
