Voltage Velocity Teacher Guide
Voltage Velocity Teacher Guide
Target: Fluency with Multiples of 10 within 100
Standard Alignment
CCSS 1.NBT.C.5: Given a two-digit number, mentally find 10 more or 10 less without having to count.
Lesson Goal
Students use place value reasoning to solve addition and subtraction problems involving multiples of 10.
Math Center Rotations
1
Multiples Mountain
Race to the peak! Solving equations correctly allows movement. Watch for Jumps and Slides.
2
Ten-Toss Bingo
Listening center. Students calculate the caller's equation and mark the total on their board.
3
Snap & Slide Match
Independent/Partner task. Pair equations (e.g., 60-20) with base-ten block cards.
Prep Checklist
- Print & Laminate Mountain Game + Key
- Prepare Bingo boards + Caller cards
- Cut Snap & Slide cards into pairs
- Print Power Player Recording Sheets
Challenge Extension
Provide cards with missing addends (e.g., 40 + ___ = 70) for students to solve on whiteboards.
Support Strategy
Use physical base-ten rods to "build" the subtraction. Crossing out blocks on cards mirrors this physical act.
Check for Understanding
"When you add 40 to 20, how many tens are you adding? Why does the 0 in the ones place stay the same?" Listen for students saying "2 tens plus 4 tens" rather than counting by ones.
Multiples Mountain Board Game
Multiples Mountain
Addition & Subtraction Race
Players: 2 - 4
Start
10 + 20
50 - 10
30 + 30 Jump +2
80 - 40
20 + 60
40 + 40
90 - 20 Slide -1
10 + 70
60 - 30
30 + 50
70 - 40
20 + 20
80 - 60
10 + 90 Jump +3
50 + 20
40 - 30
60 + 10
100 - 40
90 - 50 Slide -2
30 + 40
70 - 70
10 + 40
80 - 10
50 + 50
60 + 20
90 - 80
20 + 70 Slide -4
30 + 10
Peak!
How to Play
Roll 1 die to move. Solve the equation on your landing square. Correct? Stay. Incorrect? Move back 1. Follow arrows to the Peak!
Peak Master Key
Self-Check Guide
10 + 20 = 30
50 - 10 = 40
30 + 30 = 60
80 - 40 = 40
20 + 60 = 80
40 + 40 = 80
90 - 20 = 70
10 + 70 = 80
60 - 30 = 30
30 + 50 = 80
70 - 40 = 30
20 + 20 = 40
80 - 60 = 20
10 + 90 = 100
50 + 20 = 70
40 - 30 = 10
60 + 10 = 70
100 - 40 = 60
90 - 50 = 40
30 + 40 = 70
70 - 70 = 0
10 + 40 = 50
80 - 10 = 70
50 + 50 = 100
60 + 20 = 80
90 - 80 = 10
20 + 70 = 90
30 + 10 = 40
Ten Toss Bingo Boards
Ten-Toss Bingo
Center Board: ALPHA
3-in-a-row wins!
10
50
90
30
70
20
60
40
Ten-Toss Bingo
Center Board: BETA
3-in-a-row wins!
80
20
40
60
100
10
70
50
Ten-Toss Bingo
Center Board: GAMMA
3-in-a-row wins!
30
100
10
50
80
40
20
60
Ten-Toss Bingo
Center Board: DELTA
3-in-a-row wins!
70
10
90
40
30
100
50
80
Caller Deck 1: Addition
Cut out cards
10 + 0
10 + 10
20 + 10
20 + 20
30 + 20
30 + 30
40 + 30
40 + 40
50 + 40
80 + 10
90 + 0
70 + 30
How to Play
Caller reads card. Students calculate total mentally. Cover the number on your board. 3-in-a-row wins!
Caller Deck 2: Subtraction
Cut out cards
50 - 40
90 - 70
60 - 30
100 - 60
80 - 30
90 - 10
70 - 40
50 - 10
100 - 10
80 - 60
90 - 0
40 - 20
Voltage Velocity Centers • Ten-Toss Bingo Collection
Snap Slide Cards
Snap & Slide Match
Multiples of 10
Visual Center
Center Rules: Working with a partner, find the matching pair! Match each Equation card with the correct Base-Ten Block representation card.
20 + 30
Equation
Base-Ten Blocks
60 - 20
Equation
Base-Ten Blocks
40 + 40
Equation
Base-Ten Blocks
70 - 40
Equation
Base-Ten Blocks
Snap & Slide Match
Multiples of 10
Visual Center
50 + 10
Equation
Base-Ten Blocks
90 - 30
Equation
Base-Ten Blocks
30 + 60
Equation
Base-Ten Blocks
80 - 50
Equation
Base-Ten Blocks
Power Player Recording Sheet
Power Player
Name:
Date:
1
Multiples Mountain Log
Equation 1
Equation 2
Equation 3
Equation 4
2
Bingo Block Visuals
Choose a winning Bingo equation and draw it with Base-Ten Blocks
3
Mental Math Lightning Round
30 + 50 =
90 - 40 =
20 + 70 =
The ones digit stays at 0 when adding tens!
Voltage Velocity Centers Power Up!
