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Activity
Howard Hughes Medical Institute

Spreadsheet Tutorial 1: Formulae, Functions, and Averages

For Students 9th - 12th
Spread your knowledge of spreadsheets. The first of five tutorials in the Spreadsheet Data Analysis unit introduces the basics of spreadsheets. It shows future data analysts how to organize and format tables, and how to use functions to...
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Worksheet
Curated OER

Sums of Angles in Polygons

For Students 5th - 6th
For this angles in polygons worksheet, students determine the sum of internal angles and calculate x. A reference web site is given for additional activities.
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Lesson Plan
Curated OER

Explore: Finding Averages

For Teachers 6th
In this mathematics worksheet, 6th graders find the mean of a given set of numbers. Then they find the sum of the items in the set. Students also check their work by multiplying the mean by the number of items in the set.
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Worksheet
Curated OER

Sequences - Week 8

For Students 10th - 12th
In this sequence worksheet, students find the arithmetic and geometric sum of given sequences. They identify the next number in a sequence. This three-page worksheet contains eight problems.
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Worksheet
Curated OER

Magic Squares

For Students 1st - 2nd
In this addition worksheet, students complete 4 magic squares in which the sums of the rows, columns and diagonals must be the same. Students analyze the filled-in squares and calculate the sum or the magic number.
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Lesson Plan
Curated OER

Elapsed Time Two

For Teachers 3rd - 4th
Students study how to calculate elapsed time. In this elapsed time lesson, they determine how to calculate the ending time of an event when they are given the starting time and the elapsed time. They participate in direct instruction,...
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Worksheet
Curated OER

Algebra 2 and Trigonometry Practice Series #4

For Students 10th - 12th
In this sum of a series worksheet, students complete 6 multiple choice problems relating to the topic. They create an infinite series that converges to -2. Students graph one function on their graphing calculator.
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Lesson Plan
Curated OER

Twenty-Five Measures of the Angles of a Triangle Problems

For Teachers 9th - 10th
For this triangle worksheet, students calculate the measures of the angles or the sums of the measures of the angles in twenty-five triangle problems and hands-on activities.  The solutions are provided.
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Worksheet
Curated OER

Thanksgiving Doubles

For Students 1st - 3rd
In this Thanksgiving themed doubles worksheet, students calculate the answers to four Thanksgiving double equations.
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Worksheet
Curated OER

Calculating with Significant Digits

For Students 9th - 12th
In this significant digits worksheet, students are given the rules to finding significant digits when adding, subtracting, multiplying and dividing. Students solve ten problems and express their answers with the proper number of...
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Worksheet
Curated OER

Calculations with Negative Numbers

For Students 10th - 11th
In this algebra worksheet, learners solve algebraic equations by addition with negative numbers. There are 3 questions with an answer key.
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Lesson Plan
Curated OER

Calculate the Answer

For Teachers 2nd - 5th
Young scholars solve basic multiplication or addition facts using a calculator and product cards. They draw a card, read the sum or product, and press single digits on the calculator to display the number on the card.
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Lesson Plan
Curated OER

Magic Sum

For Teachers 3rd - 8th
Students calculate two-digit addition problems. They observe a teacher-led demonstration, and solve various problems independently.
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Worksheet
Curated OER

Calculating the Hypotenuse

For Students 6th - 7th
In this triangles worksheet, students use Pythagoras' theorem to find the hypotenuse of a triangle. Students solve 20 problems and also calculate the length of the diagonals in rectangles. This page is intended for online use but may be...
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Worksheet
Curated OER

Estimating Fractions

For Students 6th - 7th
In this estimating fractions worksheet, learners solve 20 various problems that include estimation in each. They estimate the sum or difference in each of the problems shown on the sheet. Students calculate each mixed number into a...
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Worksheet
Curated OER

Addition - What Are the Missing Numbers?

For Students 3rd - 4th
In this addition worksheet, students determine what the missing numbers are in 8 two digit addition problems; either finding the sum or an addend. They estimate and calculate each answer in 4 three and four digit addition problems.
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Worksheet
DK Publishing

And 3 More Makes...

For Students K - 1st Standards
Addition is easier to grasp when scholars draw the addends as sets of objects. Add three more teacups to each of these four sets, calculating and recording the totals. There are four equations written out without images, each needing a...
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Lesson Plan
EngageNY

The Binomial Theorem

For Teachers 11th - 12th Standards
Investigate patterns in the binomial theorem. Pupils begin by reviewing the coefficients from Pascal's triangle. They look at the individual terms, the sums of the coefficients on a row, and the alternating sum of each row. Individuals...
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Activity
Howard Hughes Medical Institute

Spreadsheet Tutorial 4: t-Test

For Students 9th - 12th
The t-test tutorial will fit your needs to a T. After calculating the mean, sum of squares, standard deviation, and variance of two data sets on a spreadsheet, scholars learn to calculate the t-values. They then learn to use the TTEST...
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Worksheet
DK Publishing

2 More Than

For Students K - 1st Standards
Which one has two more? Each row of objects has a corresponding row, and mathematicians determine which one has two more than the other, checking it off. They work with single-digit values here and should be encouraged to write the...
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Worksheet
DK Publishing

4 More Than

For Students K - 1st Standards
Each of these sets of buttons has a corresponding set with four more. Learners examine pairs to determine which one has four more, checking it off. Consider also asking them to write down the specific number of each set to encourage...
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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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Worksheet
McGraw Hill

Adding and Subtracting Mixed Numbers

For Students 4th - 8th
Adding and subtracting mixed numbers will be a breeze with this guided activity packet. Learners work through examples outlining each step including rewriting mixed numbers as improper fractions, adding numerators, and rewriting the sum...
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Interactive
CK-12 Foundation

Addition and Subtraction of Polynomials: Adding Polynomials

For Students 8th - 10th Standards
Stack the like terms to add vertically. The resource contains a visual aid to help with the addition of polynomials using the vertical method. Pupils use the aid to calculate the sum of two polynomials.