Curated OER
Codebreaker Math
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
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Divide Evenly
In this finding the quotients worksheet, 3rd graders divide two-digits by one-digit divisors with no remainders. Students solve 40 problems.
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Write the Equations
In this writing equations to problem solve learning exercise, students read the addition and subtraction problems, write the one-digit and two-digit equations, and solve without regrouping. Students solve 15 problems.
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Double Deckers- Addition and Subtraction Practice
In this addition and subtraction worksheet, students complete number sentences using the given digits. They write an addition problem on top of a subtraction problem by filling in the blanks that are shown in pictures of double decker...
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Subtraction Worksheet: Practicing Borrowing
In this subtraction learning exercise, students solve 64 problems in which two or three digit numbers are subtracted. There will be regrouping in each problem.
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Add and Subtract within 1000
The visual nature of this worksheet makes it ideal to project for an all-class warm up. Learners first complete two horizontal addition problems involving three-digit addends. Consider whether or not you will encourage them to rewrite...
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Addition and Subtraction, Multiplication and Division Review
Students must use their mathematical reasoning skills in order to make four math statements true by filling in the boxes with the correct digits. Addition, subtraction, multiplication, and division problems appear.
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Adding and Subtracting Decimals 2
In this adding and subtracting of decimals worksheet, students add and subtract numbers containing decimals up to 4 digits. Students complete 16 problems.
Alabama Learning Exchange
Partying with Two/Three Digit Whole Numbers
Learners practice problem-solving with this addition activity. They plan a party for their class and another class by determining how many cupcakes are needed. Students draw a picture of how they determined the number of cupcakes.
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Addition, Subtraction and Estimating
In this addition, subtraction and estimating worksheet, students answer 13 questions pertaining to addition, subtraction, estimating and even/odd or 2/3-digit numbers. They can click on the Check box to find out if their answers are...
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Halloween Missing Digits (A)
In this mathematics worksheet, students complete each with the correct missing number digits. Then they try to find the digits that the zombie lost while creating the sheet.
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Addition and Subtraction of Integers #1
In this addition and subtraction of integers #1 learning exercise, students solve 120 two digit problems with positive and negative numbers; there are 2 different sheets on a page, each with 60 problems.
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Addition and Subtraction: 3 Numbers Combination
In this multiple operations math instructional activity, students solve 17 problems in which three 2 digit numbers are added and subtracted. Problems are in a horizontal format.
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Fun Math 13
In this finding the difference worksheet, students subtract two-digit and three-digit numbers from three-digit numbers with and without regrouping on a worksheet with a clip art next to each problem. Students solve 15 problems.
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The School Store
Young scholars choose between the operations of addition or subtraction to solve a real life problem. In this addition and subtraction lesson, students make a chart of items sold in the school store. Young scholars then work in teams to...
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Investigation - Who is Right?
Third graders explore mathematics by solving problems in groups. In this math functions activity, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of...
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The Multiplier (small 2-digit by 1-digit numbers)
Second graders study digits in 2- or 3-digit whole numbers. They write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division.
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Which Operation To Use?
In this basic addition and subtraction activity, 2nd graders will determine the correct operation to use. Students will study 8 problems and the given answer, deciding if the correct sign to use will represent addition or subtraction.
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Simple Integer Subtraction
For this mathematics worksheet, 2nd graders solve a number of problems by subtracting simple integers from each other. There are 42 problems to solve on the sheet.
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Worksheet #10
In this mathematics activity, 2nd graders solve various problems by either adding or subtracting when necessary two-digit terms. They use a number line at the top for help solving each.
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Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
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A Fictional History of Place Value
Your class can explore standard and expanded notation, as well as computation with regrouping. They listen to a make-believe story about cavemen and the origin of numerals and place value. Then apply what they learned about renaming and...
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Centipede's 100 Shoes
Young scholars solve equations with the help of their teacher. In this simple equations lesson, students listen to the story Centipede's 100 Shoes by Tony Ross and use the scenarios given in the book as addition and subtraction problems....
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Answer Match
In this addition and subtraction practice worksheet, students solve 26 problems that require them to add and subtract using 3-digit numbers. Students match the problems that have the same sums and differences.