Math Master Anchor Charts
MA 2.NBT • Methuen Math
Place Value & Number Sense
Anchor Chart Numbers to 1,000
1
Place Value Chart
The position of each digit tells its value!
Hundreds
Tens
Ones
3
4
6
300
40
6
Flat = 100 10 tens
Rod = 10 10 ones
Unit = 1 1 one
2
4 Ways to Show Numbers
Representing the number 346:
Standard Form 346
Expanded Form 300 + 40 + 6
Word Form three hundred forty-six
Base-Ten Picture 3 flats, 4 rods, 6 units
3
Comparing Numbers
Compare from left to right (hundreds first)!
528 > 482
5 hundreds is greater than 4 hundreds!
> Greater Than
< Less Than
= Equal To
4
Skip Counting & 10 More/Less
Watch the patterns in digits:
By 5s: 15, 20, 25, 30, 35, 40...
By 10s: 70, 80, 90, 100, 110...
By 100s: 200, 300, 400, 500...
10 More / 10 Less 45 → 55 • 45 → 35
100 More / 100 Less 320 → 420 • 320 → 220
Methuen Math Pro Tip
When adding or subtracting 10, only the tens place changes (unless you regroup)!
Grade 2 Reference
MA 2.OA & 2.NBT • Methuen Math
Operations & Word Problems
Anchor Chart Add, Subtract, Arrays
1
Addition Strategies
Example problem: 47 + 25
Break Apart (Place Value)
Add Tens: 40 + 20 = 60
Add Ones: 7 + 5 = 12
Total: 60 + 12 = 72
Open Number Line
+10+10+3+2
4757677072
2
Subtraction Strategies
Example problem: 63 - 28
Count Up (Think Addition)
Start at 28 and jump up to 63:
28 + 2 = 30 (to friendly ten)
30 + 30 = 60 • 60 + 3 = 63
Total Jumped: 2 + 30 + 3 = 35
Regrouping Rule
"More on the floor? Go next door and get 10 more!" Trade 1 Ten for 10 Ones.
3
Arrays & Equal Groups
Foundations of multiplication!
3 Rows of 4 Columns
4 + 4 + 4 = 12 | 3 + 3 + 3 + 3 = 12
• Rows go ACROSS → • Columns go DOWN ↓
4
C.U.B.E.S. Problem Solver
Follow these 5 steps for 1 & 2-step problems:
C Circle the key numbers
U Underline the question
B Box math action clue words
E Evaluate & eliminate extra info
S Solve & check your work!
Methuen Math Pro Tip
In a 2-step word problem, ask: "What must I figure out first before answering the final question?"
Grade 2 Reference
MA 2.MD • Methuen Math
Measurement, Time & Money
Anchor Chart Length, Clock, Coins, Graphs
1
Measuring Length
Always line up at the ZERO mark!
Inches (in) About the width of a quarter
Feet (ft) 1 foot = 12 inches (1 ruler)
Centimeters (cm) About the width of your pinky
Meters (m) 1 meter = 100 cm
Key Rule: Centimeters are smaller than inches, so you need more centimeters to measure the same object!
2
Telling Time
Skip count by 5s around the clock face:
12 3 6 9
8:20
Short hand: Hour
Long hand: Minute (:20)
A.M. Midnight to Noon (Morning)
P.M. Noon to Midnight (Afternoon/Night)
3
Coin Values
Count starting with the greatest value!
1¢
Penny Value: 1¢
5¢
Nickel Value: 5¢
10¢
Dime Value: 10¢
25¢
Quarter Value: 25¢
1 Dollar Bill ($1.00) = 100 Cents (100¢)
4
Reading Graphs
Always check the title, scale & key!
Favorite Recess Games
Tag:
6
Soccer:
8
Swings:
4
Most: Soccer (8) Least: Swings (4) Difference: 8 - 4 = 4
Methuen Math Pro Tip
When counting coins, use hair points (skip count by 5s): Quarter has 5 hairs (25), Dime has 2 (10), Nickel has 1 (5)!
Grade 2 Reference
MA 2.G • Methuen Math
Geometry & Equal Shares
Anchor Chart 2D, 3D, Halves, Thirds
1
2D Plane Shapes
Shapes are named by their sides & angles/vertices!
Triangle 3 Sides • 3 Vertices
Quadrilateral 4 Sides • 4 Vertices
Pentagon 5 Sides • 5 Vertices
Hexagon 6 Sides • 6 Vertices
Quadrilateral Family: Square, rectangle, rhombus, and trapezoid all have exactly 4 sides!
2
3D Solid Figures
Solid figures take up space (3 dimensions):
Cube 6 Square Faces, 12 Edges, 8 Vertices
Dice
Rectangular Prism 6 Rectangular Faces, 12 Edges, 8 Vertices
Cereal Box
Cylinder & Sphere Cylinder (2 circle faces) • Sphere (0 faces)
Can / Ball
Vocabulary: Face (flat surface) • Edge (line where faces meet) • Vertex (corner)
3
Partitioning Rectangles
Tiling rectangles with same-size square tiles:
1
2
3
4
5
6
2 Rows × 3 Columns = 6 Total Squares
3 + 3 = 6 or 2 + 2 + 2 = 6
Count the total number of same-size squares to find the area!
4
Equal Shares (Fractions)
Parts must be the exact same size!
2 Equal Parts = Halves Each part is "one half" (1/2)
3 Equal Parts = Thirds Each part is "one third" (1/3)
4 Equal Parts = Fourths / Quarters Each part is "one fourth" (1/4)
Methuen Math Pro Tip
Equal shares of identical wholes do not need to have the same shape, as long as they have the same size!
Grade 2 Reference
