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CCSS Math Standard: 2.NBT.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Broken Calculator: 2-Digit Addition Gr 1-4
Broken Calculator: 2-Digit Subtraction Gr 1-4
Adding and Subtracting Fruit
Adding and Subtracting Fruit
Use super cute fruit to introduce algebraic thinking to your young math students.
Gr 1, 2, 6
Back to School Math Worksheets
Back to School Math Worksheets
In these math problems, the solution is already given. But another number is missing!
Gr 1-6
Contig
Contig
Roll three dice and combine them using any mathematical operation. But be strategic to maximize your points!
Gr 1-4
Spring Math Worksheets: Addition and Subtraction
Spring Math Worksheets: Addition and Subtraction
Four sets of 2-digit and 3-digit addition and subtraction practice. But the unknown isn’t where you expect it to be!
Gr 1-4
Game: Number Scrabble
Game: Number Scrabble
What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!
Gr 1-5
Addition: 3 Digits Plus 2 Digits (Multiple Solutions)
Addition: 3 Digits Plus 2 Digits (Multiple Solutions)
Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit addition.
Gr 1-4
Subtraction: 3 Digits Minus 2 Digits (Multiple Solutions)
Subtraction: 3 Digits Minus 2 Digits (Multiple Solutions)
Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit subtraction.
Gr 1-4
Evens and Odds – Addition and Subtraction
Evens and Odds – Addition and Subtraction
When we’re adding and subtracting, do evens make odds into evens? Do odds make evens odd? Which one has… more power!?
Gr 1, 2, 3, 4, 7
How Many Ways: Times Equals Minus
How Many Ways: Times Equals Minus
How many different ways can you make this math statement true using only the digits one through nine?
Gr 1, 2, 3, 4, 6, 7
Math Curiosity: Palindromic Number Conjecture
Math Curiosity: Palindromic Number Conjecture
Using this one weird trick, it seems that you can turn any number into a palindrome!
Gr 1-5
The Game of 100
The Game of 100
Who can get to 100 first in this simple, but delightful, math game?
Gr 1-4