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Worksheet
Curated OER

The Number Toolbox-Vocabulary Test

For Students 5th - 7th
In this numbers vocabulary worksheet, students complete a 10 question test, matching "number" vocabulary terms with their correct definition. Answers are provided on page 2.
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Worksheet
Curated OER

Adding a Single Digit

For Students 3rd - 4th
In this addition worksheet, students mentally add 20 single digit numbers to 20 three digit numbers as fast as they can without working them out on paper. Students then add 5 additional single digit numbers to 5 three digit numbers and...
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Worksheet
Curated OER

What Must Be Added?- Mental Math

For Students 4th
In this mental math instructional activity, 4th graders determine what needs to be added to each number to make the given sum using mental math. They work with multiples of 100 and 1000.
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Lesson Plan
Curated OER

Five Minute Adding Frenzy (B)

For Teachers 1st - 2nd
In this addition worksheet, students complete a five minute addition frenzy sheet. They complete 4 charts finding the sums of the columns and rows in each space. They have five minutes to finish each chart with 98% accuracy.
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Worksheet
Curated OER

Mental Arithmetic - Adding to Thousands

For Students 4th - 6th
In this addition worksheet, students solve the 15 addition problems using mental math. The last 3 problems ask that students write down the method they used to solve the problem. In these problems, a 4-digit number is added to a 1-digit...
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Lesson Plan
Curated OER

Skip it to multiply it

For Teachers 1st
First graders make sensible estimates and check the reasonableness of answers. They make up, tell and record number stories up to 9 about given objects. They skip count in twos, threes and fives.
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Worksheet
Curated OER

Worksheet #10

For Students 2nd
In this mathematics learning exercise, 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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Worksheet
National External Diploma Program Council

Finding an Average

For Students 5th - 7th Standards
Young hopefuls can practice finding the average of a group of numbers represented in tables and word problems. 
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Unit Plan
1
1
Mathematics Vision Project

Module 3: Polynomial Functions

For Students 9th - 12th Standards
An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving. 
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Worksheet
Curated OER

Rational Numbers

For Students 9th
In this rational numbers worksheet, 9th graders solve and complete 16 different problems that include adding and subtracting various rational numbers. First, they determine the sum or difference for each equation. Then, students evaluate...
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Worksheet
Curated OER

Writing Equations: Addition and Subtraction 0 to 20

For Students 2nd - 3rd
In these subtraction and addition worksheets, learners write the equations for the addition and subtraction sentences. Students solve 28 problems.
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Worksheet
Curated OER

Four Digit Vertical Addition With No Regrouping

For Students 2nd - 3rd
In this addition instructional activity set, students find the sums to 36 four digit plus two digit vertical addition problems. They do not regroup when finding the sums to these vertical problems.
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Lesson Plan
Curated OER

Pattern Puzzles

For Teachers 1st - 2nd
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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Worksheet
Curated OER

Elimination Using Addition and Subtraction

For Students 10th - 12th
In this systems of equations worksheet, students use the elimination method to solve systems of equations. An example and explanation is given at the beginning of the worksheet. This one-page worksheet contains ten problems.
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PPT
Curated OER

Rounding

For Teachers 2nd - 4th Standards
The two rules of rounding are expertly-covered in this math PowerPoint. Young mathematicians are instructed to look at the number to the right of the place value they must round to. If the number is 0-4, the number stays the same. If the...
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Worksheet
Curated OER

Math 121 - Mixture Problems

For Students 9th - 10th
In this mixture problem worksheet, students read story problems, identify necessary information, and solve mixture problems using the mixture formula. This one-page worksheet contains ten problems. Answers are provided at the bottom of...
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Lesson Plan
Curated OER

Fun With Addition

For Teachers K
Students name numbers to 30, use the number keys on the computer, use manipulatives to add, and add numbers in any order. In this addition lesson plan, students learn the language of sum, equals, and a plus sign.
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Lesson Planet Article
Curated OER

Challenge Your Middle Schoolers with Mathematical Strategy Games!

For Teachers 5th - 9th
Help learners develop the ability to think logically and mathematically, in a really fun and engaging way.
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Worksheet
DK Publishing

5 More Than

For Students K - 1st Standards
Ready for some beachy addition practice? One of these rows of sea shells has five more than the other; learners examine sets to determine which one has five more, checking it off. Consider also asking them to write down the specific...
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Lesson Plan
Curated OER

Counting On Tens or Ones

For Teachers 1st
In this mathematics worksheet, 1st graders count on tens or ones. They identify how many ones and tens that they are counting for each. Then, students write the sum for each problem.
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Worksheet
Curated OER

Matrix Addition

For Students 9th - 10th
In this matrix worksheet, students add matrices containing four to nine numbers. Explanations and examples are provided. This two-page worksheet contains ten problems.
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Worksheet
Curated OER

Add Decimals Mentally

For Students 4th - 5th
In this adding decimals activity, students add a set of 5 decimal problems, then put missing decimal numbers to make sums add up to the number 1. Answers included, a reference web site is given for additional activities.
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Interactive
Curated OER

SAT Prep

For Students 11th - 12th
In this secondary mathematics instructional activity, students are provided with questions that are designed to provide SAT test preparation. The one page interactive instructional activity contains ten questions. Answers are not provided. 
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Worksheet
Curated OER

Standard written method for addition of 2-digits

For Students 3rd - 5th
In this addition worksheet, students learn how to add two 2-digit numbers together. They then use what they read to solve the 12 addition problems. That answers are on the last page.