Common Core State Standards
Number & Operations in Base Ten
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resources for those 'aha' moments
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Math Mazes (Skip Counting)
Skip count your way through 3 different mazes that focus on number sequencing.
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Addition and Subtraction Word Problem Task Cards (Numbers 1-50)
Use a range of addition and subtraction strategies to solve twenty word problems that contain numbers 1–50.
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Place Value Bulletin Board
Unlock place value understanding with this bulletin board for back-to-school that can remain on the wall all year long!
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Counting by 5's Maze
Get to the party by skip counting to 100 with our counting by 5’s worksheet.
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Counting by 10's Maze
Find the fun and learn to skip count by 10s up to 100 with this engaging maze activity!
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Valentine's Day Hundreds Chart Mystery Pictures
Follow the color-coded number guides to fill in the hundreds chart square and reveal 9 special Valentine’s Day images.
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Adding Four 2-Digit Numbers Task Cards
Practice adding four 2-digit numbers together with this set of 16 task cards.
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2-digit + 1-digit Task Cards
Practice adding 2-digit and 1-digit numbers with this set of 18 number sentence task cards.
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Adding 2-Digit Numbers Task Cards
Practice adding 2-digit numbers with this set of 18 number sentence task cards.
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Subtracting 2-Digit Numbers Task Cards
Practice 2-digit subtraction with this set of 18 task cards.
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2-Digit + 1-Digit Numbers Addition Worksheet
Practice addition involving 2- and 1-digit numbers with this drill and practice worksheet.
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Adding 2-Digit Numbers Worksheet
Practice 2-digit addition with regrouping with this drill and practice worksheet.
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Subtracting 2-Digit Numbers Worksheet
Practice 2-digit subtraction with regrouping with this drill and practice worksheet.
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Whole Numbers on a Number Line Worksheet
Practice finding the missing number on number lines.
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Number Line Match-Up Activity (Up to 120)
Match two-digit whole numbers on a number line with this set of 32 task cards.
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Expanded Form Worksheet
Practice using expanded form up to the thousands place with this 1-page worksheet.
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What's Missing? - 100 More, 100 Less Task Cards
Find numbers 100 more or 100 less than a given number up to 4 digits with this set of 20 task cards.
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What's Missing? - Ten More, Ten Less Task Cards
Find numbers ten more or ten less than a given two- or three-digit number with this set of 20 task cards.
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Missing Addend Picture Puzzle – Level 3
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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Missing Addend Picture Puzzle – Level 2
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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100 More , 100 Less Match-Up - Three-Digit Numbers
Match 3-digit number cards to find pairs that are 100 more or 100 less of each other.
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Whole Numbers on a Number Line - Task Cards
Identify the missing whole numbers on a number line with this set of 16 task cards.
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Addition to 10 Modeling Mats
Familiarize students with adding single-digit numbers using this set of practice mats.
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Ten More, Ten Less Match-Up - Two-Digit Numbers
Identify ten more or ten less of a given 2-digit number with this set of 36 match up cards
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Ten More, Ten Less Match-Up - Three-Digit Numbers
Identify ten more or ten less of a given 3-digit number with this set of 36 match up cards.
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Different Ways to Write Numbers Worksheet
Practice and review representing number values as digits, words, expanded form, and base ten.
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Ten More, Ten Less Worksheet
Practice or review adding and subtracting 10 from a given number.
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One Hundred More, One Hundred Less Within 999 - Cut and Paste Worksheet
Add and subtract 100 from a given three-digit number in this cut-and-paste worksheet.
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More and Less Worksheet
Practice adding and subtracting 10 and 100 to a three-digit number.
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Addition Strategy - Decompose, Then Make 10 Worksheet
Build addition strategies using digits 1-10 with this two-page decomposing numbers worksheet.
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Addition Strategy - Counting On Worksheet
Solve addition problems in this 2-page Counting On Addition Worksheet.
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QR Code 3-Digit Place Value Scavenger Hunt
A fun activity where students scan QR codes to go on a 3-digit scavenger hunt in the classroom.