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Worksheet
DK Publishing

Addition with 3-Digit Numbers #1

For Students 2nd - 3rd Standards
Once your mathematicians can add two-digit numbers, it's time to bring on the three-digit addends. Here are 20 practice problems, each involving two whole-number addends. Learners do not need to regroup for any of these, and they have...
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Worksheet
Curated OER

Column Addition, 3-Digit and 4-Digit Numbers

For Teachers 3rd - 5th Standards
Show scholars that if they can add two multi-digit numbers, they can add four! They complete 20 practice problems adding three and four-digit numbers. All the equations have four addends and include units. All numbers are whole numbers....
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Lesson Plan
Curated OER

Study Buddies: Adding Three-Digit Numbers

For Teachers 2nd - 3rd
In this math worksheet, students will work with a coach to solve a story problem in which they must add three-digit numbers. Students will follow a step-by-step process and notes are provided for the coach.
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Worksheet
Curated OER

Standard written method for addition of two 3-digit numbers (1)

For Students 3rd - 5th
For this addition worksheet, students learn how to add two 3-digit numbers. They then solve the 12 addition problems on the worksheet. The answers are on the last page.
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Lesson Plan
Curated OER

Study Buddies: Adding Two-Digit Numbers

For Teachers 1st - 2nd
Some times a simple lesson plan is all you need. Here are 2 worksheets that can be used as a lesson plan on problem solving, addition, and partner work. The first worksheet has learners use a tens and ones charts to practice adding...
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Worksheet
Curated OER

Mentally Add 3 Digit Numbers

For Students 2nd - 3rd
In this addition worksheet, students are shown how to add two 3 digit numbers in your head mentally. There are 18 problems for the students to try to work in their head.
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Worksheet
Math Salamanders Ltd.

Column Addition (No Carrying) 3 Digits Sheet 2

For Students 2nd - 4th Standards
In this column addition worksheet, students add two- and three-digit numbers together without regrouping. They complete 15 addition problems.
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Lesson Plan
Curated OER

Three-Digit Addition

For Teachers 3rd - 4th
Learners work with hundreds place value, create and manipulate three-digit addition problems, and add three-digit numbers.
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Lesson Plan
Curated OER

Addition: one and two digit numbers

For Teachers 1st - 3rd
Learners add one and two digit numbers together with the help of a number line. There are 18 problems to complete.
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Worksheet
Houghton Mifflin Harcourt

Multiply 3-Digit Numbers by 1-Digit Numbers - Reteach 21.5

For Students 3rd - 4th Standards
Nice and neat, this handout explains in steps how to multiply a three-digit numeral by a single digit. Learners practice by finding the product in nine problems that follow. Perfect for homework when addressing Common Core math standards.
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Worksheet
Curated OER

Adding Multiple Digits Practice Sheets A and B

For Students 3rd - 4th
In these two finding the sums worksheets, students add two-digit and three-digit numbers with regrouping and four-digit and five-digit numbers with regrouping. Students solve 39 problems.
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Lesson Plan
Curated OER

Study Buddies: Multiplying by Two-Digit Numbers

For Teachers 2nd - 4th
Learners solve a multiplication problem in which they must multiply two 2-digit numbers with the help of a "Coach". Pupils follow a step-by step process and notes are provided for the coach.
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Worksheet
Curated OER

Three Digit 1

For Students 2nd
For this addition practice worksheet, 2nd graders add two and three digit numbers to solve twenty-five problems. Answers are included on the second page of this file.
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Worksheet
Curated OER

Add Up to Four Two-Digit Numbers

For Students 2nd
The class practices adding two, three, and four two-digit numbers. They add the number sentences on the left, then draw a line to the correct answer on the right. 
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Interactive
1
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Scholastic

Study Jams! + and - Without Regrouping

For Students 1st - 4th Standards
Addition and subtraction are essential skills for all young mathematicians. Explain the step-by-step process with respect to place value using these real-world examples. Focus is on numbers in the tens, hundreds, and thousands, making...
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Worksheet
Curated OER

Comparing Shapes That Represent 3 Digit Numbers

For Students 1st - 2nd
Engage your kids visually in number comparison with this shapes activity. They examine 16 sets of shapes with the knowledge that each represents 100 units of that shape. Each set is paired with another, and scholars indicate whether or...
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Worksheet
Curated OER

Column Addition Money Three-Digits 2

For Students 2nd - 3rd
In this finding the sums of money problems activity, students add three-digit problems with decimals and regrouping. Students solve 20 problems. 
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Worksheet
Curated OER

Column Addition- 3 Digits, Sheet 6

For Students 2nd - 4th
In this addition worksheet, students complete a set of 12 problems, adding 2 and 3 digit numbers. Numbers must be arranged vertically and problems completed. A reference web site is given for additional activities.
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Lesson Plan
Curated OER

Add and Subtract

For Teachers 1st - 2nd
Like the cubs in A Fair Bear to Share, your 2nd grade class will practice adding and subtracting double-digit numbers by grouping, regrouping, and sorting a collection of objects. This requires many resources, but it is well worth the...
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Worksheet
Curated OER

Add and Subtract within 1000

For Students 1st - 2nd
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
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Worksheet
Math Worksheets Land

Add and Subtract within 1000 - Independent Practice Worksheet

For Students 1st - 3rd Standards
Give your mathematicians some practice with three-digit numbers as they complete these addition and subtraction problems. There are six vertically-formatted equations to start, then learners add to and subtract from eight numbers...
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Worksheet
Curated OER

Add and Subtract within 1000

For Students 2nd - 4th
Solve these true equations; scholars examine three-digit addends, subtrahends, and minuends in these equations that are each missing one number. There is a list of possible answers to choose from, so decide whether or not you want to...
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Worksheet
Curated OER

Three Plus Two Digit Addition 2

For Students 1st - 3rd
Hone those math skills with this three plus two digit addition worksheet. Learners work to solve 40 problems that require them to add two-digit to three digit numbers, some regrouping is required.
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Worksheet
Curated OER

Add Three Single Digits

For Students 1st - 2nd
The focus of this lesson is practice. Included are 14 worksheets each containing 10 simple single digit problems, where 3 digits are added together to find a sum. Problems are presented in both horizontal and vertical fashion. Note: This...