Curated OER
Scale Matters
Third graders study the meaning of the digits an any whole numbers with up to 3 decimal places. They order decimals with up to 3 decimal places and perform measuring tasks, using a range of units and scales.
Curated OER
Add 2-Digit Numbers in Different Ways
In this solving addition word problems activity, students use secret code cards and counters to problem solve. Students solve six problems.
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using 1 and 2 digit numbers. Students may submit their answers to be scored.
Curated OER
The College Student Letter Home
In this student letter home worksheet, students solve a cryptogram. They transpose letters to the desired digits to create a correct addition problem. This one-page worksheet contains 1 problem. Solutions are provided...
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Adding Greater Numbers
In this adding greater numbers activity, students solve 13 problems in which four numbers are added in a column. Most numbers are four or five digits; students will need to regroup more than once.
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Addition and Subtraction 3
In this addition and subtraction practice worksheet, students solve 25 problems that require them to add and subtract with 1 and 2 digit numbers.
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Problem Solving with Addition and Subtraction
In this addition and subtraction worksheet, learners answer multiple choice questions about addition and subtraction in word problems. Students answer 10 questions using 2 and 3 digit numbers.
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Addition & Subtraction Review Worksheet 5
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 15 problems that require them to add and subtract 3 digit numbers.
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Missing Addends - Inverse Operations
In this math instructional activity, student find the missing addend in 28 single and double digit addition problems and write the corresponding subtraction problem.
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Guess My Number
In this finding the number activity, learners read clues and solve one-digit addition and subtraction problems to write the numbers in the tens and ones places and discover the missing numbers. Students solve five problems.
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Solve Story Problems: Sold! A Mathematics Adventure
Young mathematicians listen to the book Sold!: A Mathematics Adventure by Nathan Zimelman where they encounter ways to solve story problems. They then create and solve start unknown addition and subtraction equations. Resource builds in...
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Addition - Sums to 9 (3 of 3)
Simple summation skills are the meat and potatoes of future arithmetic skills. Use this worksheet to provide practice for your first graders when adding single digits. Answers are provided by the click of a box at the top of the page,...
Curated OER
It All Adds Up Puzzle #19
In this addition math puzzle worksheet, students insert the correct digits in a puzzle grid so that the rows, columns and diagonals add up to the numbers given.
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It All Adds Up- Math Square Puzzle
In this addition puzzle worksheet, students solve a math square in which rows and columns are added to equal the number provided at the end of each row. Students insert the digits in the puzzle to make correct addition sentences.
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It All Adds Up: Puzzle #11
In this addition puzzle activity, students fill 10 blanks in the rows and columns of a puzzle grid. Students add across and down; sums must equal the number given at the end of each row. Students may not repeat any digits in a row or...
Curated OER
Two Digit Addition
In this math worksheet, students practice working out problems with the operation of addition without the need for regrouping.
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Resources for Educators
Math & Science Connection
Whether you're using a collection of Dr. Seuss books to teach basic math skills like counting, adding, and subtracting, or exploring the different states of matter by melting a crayon with a hairdryer, a series...
EngageNY
Decimal Expansions of Fractions, Part 1
Is it possible to add infinitely long decimals? As pupils complete the examples in the ninth lesson of this 25-part series, they determine that adding these decimals cannot be done without error. Their task is then to determine the size...
Curated OER
Subtraction Shopping
Students subtract two digit numbers. They check each other's answers for accuracy.
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Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
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Add to Find the Greatest Total
In this addition worksheet, students solve 12 problems in which two digit numbers are added with carrying. Students ring the total that is the greatest in each row.
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Sums
In this early childhood addition practice worksheet, students use their problem solving skills to solve 10 problems that require them to add 1 digit numbers.
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Valentine's Day Chocolates Mystery: Sums to 1998 (A)
This worksheet prompts students to add three digit to three digit numbers. They are challenged to find the number of chocolates in a candy box by counting the answers above 999.