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App
Little 10 Robot

YodelOh™ Math Mountain

For Students 1st - 6th Standards
Save the yodeler from falling off the top of the mountain using basic math skills. Have endless fun while developing fluency with addition, subtraction, multiplication, and division.
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Worksheet
Helping with Math

Addition: Number Bonds to 20

For Students 1st - 3rd Standards
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.
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Worksheet
Helping with Math

Addition - Three 3-Digit Numbers

For Students 2nd - 4th Standards
There are 20 addition problems on this assignment, all of which require the addition of three three-digit numbers. All of them will require some regrouping to solve. This is terrific arithmetic practice to assign as homework. An answer...
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Worksheet
Helping with Math

Addition - Four 4-digit Numbers

For Students 3rd - 4th Standards
Stack up those digits and get your fourth graders adding! This printable handout displays 20 addition problems in which pupils find the sum of four four-digit numbers. With a click of the box in the upper left corner of the web page,...
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Lesson Plan
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Curated OER

Using Counting-on Strategy for Purchasing

For Teachers 9th - Higher Ed
Intended for learners with autism and developmental disabilities, this lesson uses the strategy of counting-on to enhance independent shopping skills. Learners will practice counting on to the next dollar value in order to purchase items...
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Worksheet
Curated OER

Addition Worksheet: Totals 19 or Less #1

For Students 2nd - 3rd Standards
In this addition worksheet, students complete a total of 35 problems, all answers to problems total 19 or less. Worksheet included links to answers and additional worksheets.
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Worksheet
Curated OER

Addition Worksheet: Totals 10 or Less #2

For Students 2nd - 3rd Standards
In this addition learning exercise, students complete a total of 35 problems, all answers to problems total 19 or less. Worksheet included links to answers and additional worksheets.
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Worksheet
Curated OER

Addition: Sums to 18

For Students 1st - 2nd Standards
In this addition worksheet, students complete a total of 30 problems, all answers to problems total 18 or less. Worksheet included links to answers and additional worksheets.
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Worksheet
Curated OER

Subtraction Worksheet: Numbers to 19

For Students 1st - 2nd Standards
In this subtraction worksheet, students solve 36 problems in which numbers below 20 are subtracted. The minuend has two digits and the subtrahend has only one.
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Worksheet
Curated OER

Subtraction Worksheet : Numbers to 19 (1 of 3)

For Students 1st - 2nd Standards
For this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
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Lesson Plan
Curated OER

Mental Math Counts

For Teachers 5th - 7th
Students use mental math. They describe reasonable and unreasonable sums and differences. Students use mental math to find the sums and differences of addition and subtraction facts at random. They solve addition and subtraction facts...
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Worksheet
Curated OER

Subtraction - Numbers to 19 ( 3 of 3)

For Students 1st - 2nd Standards
In this subtraction learning exercise, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit...
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App
Little 10 Robot

Operation Math Code Squad

For Students 2nd - 6th Standards
Your mission, if you decide to accept it, is math skills practice. In this app, Mission Impossible meets basic number operation skills, and your students are the secret agents. 
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Worksheet
Helping with Math

Subtraction: 4-digit numbers

For Students 3rd - 5th Standards
Twenty four subtraction problems are displayed on this printable worksheet. All of the problems involve taking a four-digit number away from a greater four-digit number. Regrouping is required in some cases. This nifty homework...
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Worksheet
Curated OER

Subtraction - Numbers to 12

For Students 1st Standards
In this subtraction worksheet, 1st graders solve for the differences in 30 vertical problems in which they use numbers up to 12.