Tens Power Slides Grade 3 Math Boost
Lesson 9 Support
Tens Power Play!
Learn the simple secret to multiplying numbers like 3 × 20 and 4 × 30 using base-ten rods!
Our Goal: Count the tens, then add the zero!
Unit Form & Place Value Strategy Step-by-Step Visual Guide
Step 1 • The Big Secret Comparing Ones vs. Tens
If you know your basic fact, you know the tens!
Basic Fact (Single Units)
3 × 2 = 6
3 groups of 2 ones = 6 ones (6)
Tens Power (Rods)
3 × 20 = 60
3 groups of 2 tens = 6 tens (60)
Notice the pattern: 6 tens is just 6 with a zero on the end!
Step 2 • Visual Model Let's solve 4 × 20
See it with Base-Ten Blocks!
4 groups of 20 (Each rod = 10)
Group 1
2 tens (20)
Group 2
2 tens (20)
Group 3
2 tens (20)
Group 4
2 tens (20)
Step 1: Groups
4 groups of 2 tens
Step 2: Basic Fact
4 × 2 = 8 tens
Step 3: Total Value
8 tens = 80!
Therefore: 4 × 20 = 80
Step 3 • Story Problem Book Stacks Challenge
The Classroom Library
There are 3 stacks of books on a table. Each stack has 20 books. How many books in all?
Step-by-Step Solution Path
1. How many groups (stacks)? 3 groups
2. Books per stack as tens: 2 tens (20)
3. Basic fact: 3 × 2 tens = 6 tens
4. Total value of 6 tens: 60 books!
Equation: 3 × 20 = 60 Sentence: There are 60 books in all.
Step 4 • The 2-Step Magic Trick Easy Mental Strategy
How to Solve 5 × 30 in 5 Seconds!
1
Hide & Multiply!
Temporarily hide the zero. Multiply the basic fact first:
Basic fact:
5 × 3 = 15
2
Bring the Zero Back!
Because it is 15 tens, put one zero on the right side:
15 tens becomes:
150
5 × 30 = 150
Remember: 1 zero in the problem → 1 zero in the answer!
Quick Check • You Got This! Partner Turn & Talk
Try these three with your math partner:
Challenge A
2 × 40
2 × 4 tens = ?
Challenge B
3 × 30
3 × 3 tens = ?
Challenge C
4 × 50
4 × 5 tens = ?
Partner starter: "I know that __ × __ = __, so __ tens is equal to __!"
Ready to practice on your worksheet! You are a Tens Power Master!
Tens Power Worksheet Math Guided Practice • Grade 3 Support
Tens Power Worksheet
Name:
Date:
Anchor Helper: Unit Form Strategy
1 Base-Ten Rod = 1 Ten (10)
Basic Fact: 3 × 2 = 6
Tens Power: 3 × 20 = 60 (6 tens)
1
Part 1: Count the Tens Blocks
Follow the sentence frames to find each product.
Problem 1: 3 × 20 Each green rod = 10
There are groups of tens.
3 × 2 tens = tens.
The value of these tens is: 3 × 20 =
Problem 2: 4 × 20 4 groups of 2 tens
There are groups of tens.
4 × 2 tens = tens.
The value of these tens is: 4 × 20 =
Problem 3: 2 × 40 2 groups of 4 tens
There are groups of tens.
2 × 4 tens = tens.
The value of these tens is: 2 × 40 =
Tens Power Play • Modified Lesson 9 Turn over for Part 2 → Page 1 of 2
Page 2 • Practice & Story Problems Name:
2
Part 2: Basic Fact to Tens Fact
First solve the basic fact. Then use that answer to multiply by the multiple of ten.
Item 4 2 groups
Basic Fact: 2 × 3 =
Tens Fact: 2 × 30 =
Item 5 4 groups
Basic Fact: 4 × 3 =
Tens Fact: 4 × 30 =
Item 6 5 groups
Basic Fact: 5 × 2 =
Tens Fact: 5 × 20 =
Item 7 3 groups
Basic Fact: 3 × 4 =
Tens Fact: 3 × 40 =
3
Part 3: Story Problems with Scaffolds
8
There are 3 stacks of books on the classroom table. Each stack has 20 books . How many books are there in all?
Step 1: In tens unit form: 3 × 2 tens = tens
Step 2: Total number: That is equal to:
Multiplication sentence: 3 × 20 = books
9
Ming fills 4 gift bags with prizes. He puts 30 prizes in each bag. How many prizes does Ming use in all?
Step 1: Basic fact I know: 4 × 3 =
Step 2: Tens fact: 4 × 3 tens =
Multiplication sentence: 4 × 30 = prizes
How do you feel multiplying by tens?
Need Help Getting It Tens Master!
Tens Power Play • Modified Lesson 9 Great Job! Page 2 of 2
Tens Power Teacher Guide Tier 2 Intervention • Teacher Facilitation Guide
Tens Power Teacher Guide
Ready Math Lesson 9 Modified
Grade 3 • Operations & Place Value
Key Modifications for Lower-Level Learners
1. Removed Algebraic Parentheses
Replaced abstract associative rules like \(3 \times (4 \times 10)\) with intuitive "Unit Form" reasoning (\(3 \times 4\text{ tens} = 12\text{ tens}\)).
2. Concrete Base-Ten Visuals
Every problem anchors to green 10-rods grouped visually, preventing abstract counting errors.
3. Controlled Factor Complexity
Prioritized friendly basic facts (\(2, 3, 4, 5\)) before tackling larger double-digit facts like \(6 \times 90\) or \(8 \times 80\).
Concrete → Representational → Abstract (CRA) Routine
Phase 1: Concrete (Physical Rods • 5 Minutes) Hands-On Manipulatives
Give each pair 12 physical base-ten rods. Prompt: "Build 3 groups of 2 tens." Ask students: "How many rods in each group? How many rods in total?" Count by tens aloud together: "10, 20, 30, 40, 50, 60."
Phase 2: Representational (Visual Sketches • 5 Minutes) Tens Power Slides
Present Tens Power Slides (Slides 2–4) . Guide students to circle groups of drawn rods. Introduce quick drawing notation: draw a vertical tally line “|” to represent a 10-rod without drawing each unit block.
Phase 3: Abstract (Unit Form & The Zero Pattern • 5 Minutes) Tens Power Worksheet
Connect the basic multiplication fact to tens: “If \(3 \times 2 = 6\), then \(3 \times 2\text{ tens} = 6\text{ tens}\). What is \(6\text{ tens}\)? It is \(60\)” (Worksheet Page 2).
Target Language & Partner Sentence Frames
Anchor Words:
Multiple of 10: Any number ending in 0 (10, 20, 30, ...)Ten Rod: A group of 10 single units connected.Unit Form: Saying “6 tens” instead of only “60”.
Student Dialogue Frames:
• “There are ___ groups of ___ tens.”
Tens Power Play • Teacher Guide Turn over for Misconceptions & Complete Answer Key → Page 1 of 2
Page 2 • Misconceptions & Answer Key Tens Power Play Facilitation
Common Misconceptions & Immediate Teacher Fixes
Tens Mastery Independent Worksheet Math Independent Practice • Grade 3 Power Math
Tens Mastery Independent Worksheet
Name:
Date:
Remember Your 2-Step Strategy:
1. Multiply basic fact (e.g., 3 × 2 = 6) → 2. Think in tens (6 tens = 60)
1
Part 1: Unit Form & Models
Use the base-ten blocks to complete the unit form sentence.
3 × 3 tens = tens 3 × 30 =
5 × 2 tens = tens 5 × 20 =
2 × 5 tens = tens 2 × 50 =
2
Part 2: Power Pair Connections
Solve the basic fact first, then write the tens product.
Problem 4 6 groups of 2
Basic Fact: 6 × 2 =
Tens Fact: 6 × 20 =
Problem 5 3 groups of 5
Basic Fact: 3 × 5 =
Tens Fact: 3 × 50 =
Problem 6 4 groups of 4
Basic Fact: 4 × 4 =
Tens Fact: 4 × 40 =
Problem 7 2 groups of 7
Basic Fact: 2 × 7 =
Tens Fact: 2 × 70 =
Problem 8 5 groups of 3
Basic Fact: 5 × 3 =
Tens Fact: 5 × 30 =
Problem 9 2 groups of 8
Basic Fact: 2 × 8 =
Tens Fact: 2 × 80 =
Tens Power Play • Independent Work Turn over for Part 3 → Page 1 of 2
Page 2 • Missing Factors & Story Problems Name:
3
Part 3: Find the Missing Number
Fill in the box or blank that makes each equation true.
Problem 10
4 × = 80
Problem 11
× 30 = 90
Problem 12
3 × 40 =
Problem 13
6 × = 60
Problem 14
× 50 = 150
Problem 15
5 × 20 =
4
Part 4: Independent Real-World Problems
16
The school art room has 5 boxes of colored markers. Each box holds 30 markers . How many markers are there in total?
My Strategy / Unit Form:
Basic Fact I Used:
Equation & Answer: = markers
17
Coach Maya prepares 4 ball carts for gym class. Each cart holds 20 tennis balls . How many balls did Coach Maya prepare?
Tens Focus Steps Worksheet Step-by-Step Math Support • Tier 2/3 Modified
Tens Focus Steps Worksheet
Name:
Date:
Look at the Example Model Do Step 1 first, then do Step 2!
3 × 20 = ?
Step 1: Multiply First
3 × 2 = 6
Step 2: Add The Zero
6 tens = 60
Follow the steps for each problem. Check the box when done!
Problem 1 4 × 20
□ Step 1: Multiply basic fact 4 × 2 =
□ Step 2: Write tens answer 4 × 20 =
Problem 2 2 × 30
□ Step 1: Multiply basic fact 2 × 3 =
□ Step 2: Write tens answer 2 × 30 =
Problem 3 5 × 20
□ Step 1: Multiply basic fact 5 × 2 =
□ Step 2: Write tens answer 5 × 20 =
Problem 4 3 × 40
□ Step 1: Multiply basic fact 3 × 4 =
□ Step 2: Write tens answer 3 × 40 =
Tens Power Play • Focus Steps Turn page for Part 2 → Page 1 of 2
Page 2 • 3-Step Word Problems & Final Steps Name:
5 Word Problem: Apple Baskets
Follow Steps A, B, and C
Farmer Dan has 4 baskets . Each basket has 30 apples . How many apples are there altogether?
□ Step A: Basic Fact
Multiply single digits:
4 × 3 =
□ Step B: Tens Unit
Think in tens:
4 × 3 tens =
□ Step C: Final Total
Total apples:
apples
6 Word Problem: Sticker Packs
Follow Steps A, B, and C
Maria bought 2 packs of stickers. Each pack has 50 stickers . How many stickers did Maria buy?
□ Step A: Basic Fact
Multiply single digits:
2 × 5 =
□ Step B: Tens Unit
Think in tens:
2 × 5 tens =
□ Step C: Final Total
Total stickers:
stickers
Quick Practice: Write Both Numbers
7. Basic: 6 × 2 = Tens: 6 × 20 =
8. Basic: 3 × 3 = Tens: 3 × 30 =
Great Job Following Each Step! You took it one step at a time and mastered the tens power!
Teacher Stamp ★ ★ ★
Tens Power Play • Focus Steps Step-by-Step Success! Page 2 of 2
