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Lesson Plan
Curated OER

Grandpa's Chocolates

For Teachers 2nd - 4th
It's fun playing a game of "Guess What's in the Jacket Pocket?" Young scholars read the question using the concept of doubles using mental math. They then share their solutions with the class.
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Worksheet
Curated OER

Forties Doubling Version 1

For Students 2nd - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Thirties Doubling Version 1

For Students 2nd - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Teens Doubling Version 1

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Twenties Doubling Version 1

For Students 1st - 3rd
For this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Nineties Doubling

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Eighties Doubling

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Seventies Doubling

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Sixties Doubling

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Doubling Two Digits (No Carrying)

For Students 1st - 3rd
In this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Worksheet
Curated OER

Doubling Two Digit Numbers (All Problems) Version 2

For Students 2nd - 3rd
In this addition worksheet, students solve 40 problems in which two digit numbers are doubled. There will be carrying in some of the problems. Example: 79 + 79.
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Worksheet
Curated OER

Single Digit Doubling Version 1

For Students 1st - 2nd
For this addition practice worksheet, students hone their math skills as they solve 40 problems that require them to add 1 and 2-digit numbers that double themselves.
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Worksheet
Curated OER

Double Trouble Addition

For Students 1st - 2nd
In this adding doubles worksheet, students enhance their addition skills by adding the doubles. Students complete 12 sets of doubles addition problems.
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Worksheet
Curated OER

Doubling Two Digit Numbers

For Students 2nd - 3rd
In this addition worksheet, students add one and two digit numbers that are doubles facts. Students complete 40 addition problems.
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Lesson Plan
Curated OER

Adding Doubles Plus One (B)

For Teachers 2nd - 3rd
In this addition worksheet, students find the sums of single digit doubles plus one. Students solve 21 problems associated with adding doubles.
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Lesson Plan
Curated OER

Adding Doubles Plus One (A)

For Teachers 2nd - 3rd
In this addition worksheet, students find the sums by doubling the least number and adding one. Students solve 21 problems.
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Worksheet
Curated OER

Sums: adding same number

For Students 1st - 2nd
In this doubles addition activity, students add the sums of doubles addition problems with numbers up to 9. Students complete 10 problems.
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Worksheet
Curated OER

Math Lesson 13

For Students 1st - 2nd
In these math lessons worksheets, students practice their math skills of addition by completing the 20 pages of double digit addition equations.
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Worksheet
Math Worksheets Land

Add and Subtract to 100

For Students 1st - 2nd Standards
Give your scholars some basic practice with addition and subtraction problems. Because the answers are explained at the bottom, consider projecting this and covering up the bottom, revealing only after class responses have been shared....
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Lesson Plan
Curated OER

Addition Polymerization: Preparation of Polystyrene Using Two Types of Initiators

For Teachers 11th - Higher Ed
Advanced chemistry classes compare the polymerization of styrene using two different initators: benzoyl peroxide and aluminum chloride. Once they synthesize polystyrene, they compare the two producet for melting point and density. There...
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Lesson Plan
Curated OER

Adding Doubles (B)

For Teachers 1st - 2nd
In this adding doubles worksheet, students enhance their addition skills by adding the double numbers. Students add to solve the 21 problems.
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Worksheet
Curated OER

Go Ahead, Create Problems: Enrichment

For Students 3rd - 4th
In this addition problems worksheet, students create six addition problems. In the problems, students use three two-digit numbers in each. Students make a ten to solve three problems and use doubles to solve the other three problems....
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Lesson Plan
Curated OER

Let's Learn Those Facts

For Teachers 1st - 2nd
Students practice adding one digit numbers.  In this practicing adding one digit numbers lesson, students roll dice to determine which one-digit numbers they will add together.  Students practice adding one digit numbers for speed and...
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Worksheet
Curated OER

Add Three Numbers Practice 11.4

For Students 2nd - 3rd
In this column addition worksheet, learners solve 13 problems in which three two-digit numbers are added. Students look for a ten or a double.

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