Lesson Plan
Curated OER

Mental Math for Adding Decimals

For Teachers 5th
Fifth graders work in groups to practice adding decimals. In this adding decimals lesson, 5th graders call out different money amounts to each other and mentally add the coins called out. Students take turns calling out and adding the...
Lesson Plan
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Use Symbols to Subtract

For Teachers 1st - 2nd
Students practice crossing out items in a group in order to complete subtraction problems. In this subtraction lesson plan, students watch a PowerPoint presentation and then practice problems on their own.
Worksheet
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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...
Worksheet
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Working with Scientific Notation

For Students 8th - 10th
In this scientific notation learning exercise, students are given directions to add, subtract, multiply and divide using scientific notation. They complete twenty four problems and express their answers in scientific notation.
Worksheet
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Mountain Math Worksheet

For Students 5th
In this number sense worksheet, 5th graders solve 37 problems based on a given number. Students are asked to round the number, identify the number as even or odd and add 100 to the number.
Worksheet
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Christmas Themed Math Word Problems 0 to 40

For Students 2nd - 3rd
In this addition and subtraction worksheet, students read and solve Christmas themed word problems 0 to 40. In this fill in the blank worksheet, students show their work to solve two word problems.
Worksheet
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Adding Decimals with Hundredths

For Students 3rd - 6th
In this adding decimals worksheet, students add numbers with decimals in the hundredths place. Students complete 4 sets of problems.
Lesson Plan
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PIG/HOG - Activity

For Teachers K - 3rd
Students play PIG, which is an addition game, played between two or more students (but they CAN play alone!). The first player rolls the 6-sided, pip dice. They add up the total by counting the pips, using their fingers.
Worksheet
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Subtraction with Borrowing

For Students 3rd - 4th
In this math learning exercise, learners go through the process of learning how to borrow in subtraction to the hundreds place. Students are instructed to break down the numbers and "draw squares, sticks and dots" before crossing out...
Worksheet
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Addition: 2-Digit plus 2-Digit, No Regrouping

For Students 2nd - 3rd Standards
In this addition worksheet, students complete 30 problems, adding two, 2-digit numbers-no remainders. Worksheet includes links to answers and additional worksheets.
Worksheet
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Decimal Fractions with a Calculator

For Students 5th - 6th
For this decimals worksheet, students write what they had to do to change decimal numbers to other decimal numbers. Students complete 28 problems where they write if they added, subtracted, multiplied, or divided.
Worksheet
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Ordinal Numbers and Roman Numerals

For Students 3rd - 5th
In this ordinal numbers worksheet, students color the ordinal numbers in people and write the ordinal number for different one and two digit numbers. Students complete 10 problems.
Lesson Plan
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Ants in Your Pants

For Teachers 1st
First graders read "One Hundred Angry Ants" by Elinor Pinczes. They identify various sums that equal ten and display them on a chart.
Worksheet
Helping with Math

Subtraction : 3-digit - 3-digit

For Students 3rd - 5th Standards
In this subtraction worksheet, math wizards subtract three-digit numbers from different three-digit numbers. Some of the 24 problems require regrouping.
Lesson Plan
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Number Books

For Teachers 1st - 4th
Learners construct a book to illustrate number concepts. They write their numbers on a sheet of paper. Students in grade 1 discuss counting to 100 by different numbers. Pupils in grades (2-4) write basic addition or subtraction story...
Worksheet
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Arithmetic With Whole Numbers and Decimals

For Students 5th - 6th
In this whole numbers and decimals worksheet, students solve 40 problems in which whole numbers and decimals are added, subtracted, multiplied and divided. This page can be done on paper but was intended to be an online activity.
Lesson Plan
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Matrix Operations

For Teachers 9th - 10th
Young scholars solve problems using matrices. In this algebra instructional activity, students add, subtract and multiply matrices. They use the graphing calculator to simplify and graph linear equations.
Worksheet
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Multiple Operations (F)

For Students 3rd - 5th
In this multiple operations worksheet, students sharpen their math skills as they solve 30 problems that require them to add, subtract, multiply, or divide.
Worksheet
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Place Value Activity

For Students 5th - 6th
In this place value worksheet, students in pairs shuffle a set of place value cards and then lay them out face down on a table. Students then draw a card and place it under one of their place value cards.
Lesson Plan
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Fraction Facts

For Teachers 6th - 8th
Students explore the concept of fractions. In this fractions lesson, students perform basic operations such as addition and subtraction with fractions. Students play a game on the computer called 'Fraction Four' that gives students...
Interactive
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Adding Integers

For Students 5th - 6th
In this integer worksheet, students solve 12 problems, adding integers. Answers and hints are available on-line; a reference web site for additional resources is given.
Interactive
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Adding Integers II

For Students 5th - 6th
In this adding integers worksheet, students solve 10 problems, adding integers. Students may click on hint or check answer buttons. Page has links to additional resources.
Lesson Plan
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Adding Decimals with Hundredths

For Teachers 4th - 5th
For this worksheet, students learn to add decimal numbers to the hundredths. Students first compare adding and subtracting decimals with the corresponding fractions in 6 problems. Then students add 35 decimal numbers mentally, filling...
Worksheet
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Addition Strategies: Compensation

For Students 3rd - 4th
In this math worksheet, students learn the addition strategy of compensation: adding an easy number like 10, 20 or 30 and then subtracting a very small number like 1 or 2. Students solve 12 problems on the page.