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Addition and subtraction

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Fact Families - Addition & Subtraction

- Lesson plan -

Students lean about Fact Families by adding and subtracting numbers up to 10 and up to 20.

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Your Own Math Expressions

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A user friendly tool to enter your own expressions and compile an exercise.

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Addition & Subtraction

- Lesson plan -

Students will practice beginning addition and subtraction facts. They will be introduced to the inverse relationship of addition and subtraction.

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Place Value Chart: With Decimal Numbers

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Formatting numbers for decimals. Students will learn to understand the place value of every number.

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Creating a Number Line

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A number line that can be used with all methods.

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Hearts in Love

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The students learn how to divide ten with the 'Hearts in love'.

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Sum Machine

- Activity -

A machine to solve a variety of sums.

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Neighbor number

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Practice consecutive numbers one less and one greater of a certain number.

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100 Bead String

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A 100 bead string with alternating groups of 5 or 10 red and 10 white beads.

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Twin Numbers to 10 or 20

- Activity -

Complete the number twin by choosing the correct missing number.

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Math with Spinners

- Lesson plan -

Use spinners to practice math

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Calculator

- Activity -

An easy to use calculator for your smart board or interactive whiteboard. You can use this calculator widget in combination with any of our other tools. This calculator can be a good aid for our other mathematics tools.

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One more or one less

- Activity -

Look at the items. Add one (or subtract one) and write down that number.

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Addition and Subtraction

- Lesson plan -

Solve addition and subtraction problems, including word problems involving two-and-three digit numbers. Complete in addition and subtraction sentence with missing addends including inverse relationships between and addition and subtraction.

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Number Line with Decimals

- Activity -

Identifying and placing numbers and/or decimals.

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Abacus

- Activity -

Learn how to add and subtract.

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