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Activity
Illustrative Mathematics

Hundred Chart Digit Game

For Teachers K - 2nd Standards
Math games, especially in the primary grades, provide great opportunities for developing the number sense of young mathematicians. Working in pairs with a deck of single-digit cards, students take turns drawing two cards and reading the...
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Worksheet
Curated OER

Subtraction Practice Series: Worksheet 4a

For Students 3rd - 5th
In this subtraction worksheet, students find the difference of two-digit numbers. This one-page worksheet contains 25 problems. Numbers range from the teens through the thirties. An answer sheet is provided.
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Worksheet
Curated OER

Subtraction - Numbers in the Teens

For Students 2nd
In this math worksheet, 2nd graders find the differences in 23 subtraction problems. They work with numbers through the teens as the minuend and through ten as the subtrahend.
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Worksheet
Curated OER

Adding Doubles Facts

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

Take Away From Teen Number

For Students K - 2nd
Subtract numbers 20 and under. Learners solve 10 equations by taking away single digit numbers from a number larger than 10, filling in the blank with the answer.
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Worksheet
Curated OER

Doubling Two Digits (Teens Through Forties)

For Students 2nd - 3rd
In this doubling addition worksheet, students add the double numbers to solve the 2 digit addition equations. Students add to solve 40 problems.
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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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Lesson Plan
Curated OER

Exploring Teen Numbers

For Teachers 1st - 2nd
Learners explore place value.  In this numeration instructional activity, students use ten frames to represent numbers greater than ten.  Learners read two digit numerals and build the corresponding number using counters and ten frames. ...
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Worksheet
Curated OER

Subtract a Single Digit from a 2-Digit Number

For Students 1st - 2nd
In this subtraction worksheet, students complete a set of 10 problems, subtracting single-digit numbers from double-digit numbers. An answer key is given.
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Lesson Plan
Curated OER

Teenagers

For Teachers 1st
In this fast-paced activity, learners identify the order of numbers from 13 to 20. They practice greater than and less than with verbal responses to pairs of numbers. Suggested accompaniments include counting forward and backward to 20....
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Worksheet
Curated OER

Revise Spelling

For Students 2nd - 4th
In this revising spelling of numbers learning exercise, students write 8 word numbers into actual numbers. Students double check the accuracy of their answers.
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Lesson Plan
Film English

iDiots

For Teachers 9th - 12th Standards
Mobile phones have become an integral part of many people's lives. Examine the role and impact of technology through a short video and related activities. Pupils share what they use their phones for before viewing the film. Class members...
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Printables
Math Learning Center

Addition Strategies

For Teachers 2nd - 3rd Standards
Help young mathematicians refer to simple addition strategies with a set of math posters. The pages feature ways to remember how to add zero to a number, how to determine if a number is odd or even, and making fast tens.