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Lesson Plan
Curated OER

What's the Difference?

For Teachers 6th - 12th
Students explore the differences between acoustic and digital pianos. In this music lesson, students listen to an acoustic piano and digital piano. Students play both types of pianos and discuss the differences.
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Worksheet
Curated OER

Subtraction Computation- 3 Digit Numbers

For Students 3rd - 4th
In this subtraction worksheet, learners solve 16 problems in which 2 or 3 digit numbers are subtracted from 3 digit numbers. There will be regrouping, sometimes twice in the problems.
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Worksheet
Curated OER

Three-Digit Addition and Subtractions [M]

For Students 3rd - 4th
In this addition and subtraction activity, students complete a total of 49 problems, adding or subtracting 3 digit numbers. Answers included on page 2.
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Worksheet
Curated OER

What Numbers Do Digits Represent

For Students 4th - 6th
In this place value instructional activity, learners write down the value of the number underlined in the larger numbers. For example, 390 945 will be provided and students write down 40. They then use a calculator to solve addition and...
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Worksheet
Curated OER

Christmas Missing Digits

For Students 2nd - 3rd
In this missing digits worksheet, students fill in missing digits in addition, subtraction and multiplication problems. Answers are included.
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Worksheet
Curated OER

Subtraction

For Students 1st
In this subtraction worksheet, 1st graders solve 3 sets of subtraction problems to enhance their math skills. Students complete 28 single digit problems.
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Worksheet
Curated OER

Subtract Two

For Students K - 1st
In this finding the differences worksheet, students subtract two from the single digit numbers three to nine. Students solve 10 problems. 
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Worksheet
Curated OER

Christmas Missing Digits "F"

For Students 2nd - 3rd
In this Christmas missing digits activity, students fill in missing numbers in 22 problems including addition, subtraction and multiplication. Answers are included.
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Worksheet
Curated OER

Missing Digit Operations (K)

For Students 3rd - 4th
In this missing digit worksheet, students fill in two missing digits in each of 30 problems. They fill in the numbers in two and three digit addition, subtraction, multiplication, and division problems.
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Lesson Plan
Curated OER

Goldfish Subtraction

For Teachers 2nd - 3rd
Students manipulate Goldfish crackers to explore subtraction and number sentences.
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Worksheet
Curated OER

Subtraction in the Hundreds

For Students 3rd
In this subtraction worksheet, 3rd graders manipulate numbers to create the outcome of the problem. Students must use the given numbers to arrange the numbers and create a subtraction problem with the lowest outcome possible.
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Worksheet
Curated OER

Story Subtraction

For Students 2nd - 3rd
In this story problems worksheet, students solve 5 word problems in which two and three digit numbers are subtracted. There will be regrouping.
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Worksheet
Curated OER

Sharpen Your Skills: Addition and Subtraction

For Students 1st - 2nd
In this addition and subtraction worksheet, students solve the equations that range from three digits to five digits. Students must either add to solve or subtract.
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Worksheet
Curated OER

Missing Digit Operations (F)

For Students 4th - 5th
in this missing digits worksheet, students solve 30 problems in which the two missing digits are filled in to complete the addition, subtraction, multiplication or division equation.
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Worksheet
Curated OER

Estimate Sums and Differences

For Students 6th
In this sums and differences worksheet, 6th graders solve 20 different problems that including the estimation of numbers in each one. They estimate the sum or difference found in each problem and write it in the space provided. Then,...
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Interactive
Curated OER

Problem Solving with Addition and Subtraction: Post Test

For Students 3rd - 5th
In this addition and subtraction worksheet, students answer multiple choice questions where they solve word problems using 2 and 3 digit numbers. Students complete 10 questions total.
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Worksheet
Curated OER

The Math Lesson 2

For Students K - 2nd
In this subtraction practice instructional activity, students use their problem solving skills to solve 120 problems that require them to subtract 1 digit numbers from 1 digit numbers.
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Worksheet
Curated OER

Magic Math: sums of 2

For Students 1st - 3rd
For this addition worksheet, students add one digit numbers to the number 2 and check it with the subtraction fact. Students complete 10 problems.
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Worksheet
Curated OER

Missing Numbers Subtraction [B]

For Students 2nd - 3rd
In this subtraction worksheet, students fill in the missing number in 24 simple subtraction problems, answers are included on page 2.
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Worksheet
Curated OER

Addition and Subtraction of Integers #1

For Students 8th - 9th
In this addition and subtraction of integers #1 worksheet, students solve 120 two digit problems with positive and negative numbers;  there are 2 different sheets on a page, each with 60 problems.
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Worksheet
Curated OER

Money Subtraction (J)

For Students 3rd - 4th
In this subtracting money worksheet, students subtract three-digit numbers in increments of two cents with some regrouping. Students solve 20 problems.
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Worksheet
Curated OER

Addition and Subtraction: 3 Numbers Combination

For Students 3rd - 4th
In this multiple operations math activity, students solve 17 problems in which three 2 digit numbers are added and subtracted. Problems are in a horizontal format.
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Lesson Plan
Pennsylvania Department of Education

What Balances?

For Teachers Pre-K - 2nd
Students explore another meaning of subtraction as it pertains to the inverse of addition. In this what balances lesson, students identify the concept of subtraction as a balance. Students use subtraction facts to generate addition...
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Worksheet
Curated OER

Subtraction

For Students 1st - 2nd
In this subtraction worksheet, students use the number puzzle to solve the double digit subtraction problems. Students solve 9 problems.

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