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Assessment
Illustrative Mathematics

Three Composing/Decomposing Problems

For Students 2nd Standards
Practice composing and decomposing numbers in base-ten using three word problems. Each problem presents a different scenario requiring learners to explain their thinking, find the number of ones, and find out different ways to make a...
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Worksheet
Curated OER

Three Digit Vertical Addition

For Students 2nd
In this three-digit vertical addition activity, 2nd graders find the sums in 20 problems. They complete problems which involve regrouping in all three place values.
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Lesson Plan
Curated OER

Study Buddies: Subtracting 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 subtract 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

Column Subtraction -3 Digits

For Students 2nd - 3rd
In this subtraction worksheet, students complete a total of 12 problems, subtracting one 3-digit number from another. A reference web site is given for additional activities.
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Worksheet
Curated OER

Column Subtraction With Three-Digits (Sheet #2)

For Students 2nd - 4th
In this subtraction worksheet, students practice subtracting in columns. Students complete the worksheet by solving twelve three-digit subtraction problems.  
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Lesson Plan
Curated OER

Earth Day Number Sense

For Teachers 2nd - 4th
Elementary schoolers count and order objects using numbers 1-300. They bring recyclable items from home. Students group the items, skip count by 2's, 3's, and 5's, and arrange the items on a number line. Recyclable plastic bags are put...
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Lesson Plan
Curated OER

One Digit Addition and Subtraction (T)

For Teachers 1st - 2nd
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 1 digit problems. Students solve 49 problems.
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Worksheet
Curated OER

Column Addition (No Regrouping)

For Students 2nd - 4th
In this column addition instructional activity, learners add two and three digit numbers together without regrouping. Students complete 15 addition problems.
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Worksheet
Curated OER

Addition Word Problems, Single Digit - Three Numbers

For Students 1st - 3rd
Having a space to show work is a great way to gain insight into your learner's thinking. They solve 5 word problems and use the boxes provided to show their work.  An answer key is included.
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Worksheet
Curated OER

Addition: Three Addends

For Students 1st - 2nd
Learners add three single-digit addends to find their sums. There are 10 practice problems whose answers range from 0-10. 
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Lesson Plan
Curated OER

Two-Digit Plus One-Digit Addition (A)

For Teachers 1st - 2nd
In this math worksheet, students solve 100 problems in which 2 digits are added to one digit numbers. Example: 44 + 9. Problems are written in a vertical format and are closely spaced.
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Worksheet
Curated OER

Add One-Digit Numbers

For Students 1st - 2nd
For this one-digit vertical addition worksheet, students add pairs of numbers to find the sums to seventeen. Students solve 12 problems.
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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 Digit Subtraction No Zero Borrowing

For Students 2nd - 4th
In this subtraction practice learning exercise, students hone their math skills as they solve 40 problems that require them to subtract 3-digit numbers from 3-digit numbers.
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Worksheet
Curated OER

Three Digit Addition and Subtraction (F)

For Students 1st - 2nd
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 49 3-digit equations.
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Worksheet
Curated OER

Three-Digit Addition and Subtraction (T)

For Students 1st - 2nd
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 49 3-digit addition and subtraction problems.
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Worksheet
Curated OER

Three Digit Addition and Subtraction (C)

For Students 1st - 2nd
In this addition and subtraction worksheet, students enhance their addition and subtraction skills by solving the 49 3-digit equations.
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Worksheet
Curated OER

Three-Digit Addition and Subtraction (O)

For Students 2nd - 4th
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 3-digit numbers.
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Worksheet
Curated OER

Three-Digit Addition and Subtraction (S)

For Students 2nd - 4th
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 3-digit numbers.
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Worksheet
Curated OER

Three-Digit Addition and Subtraction (R)

For Students 2nd - 4th
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 3-digit numbers.
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Worksheet
Curated OER

Three Digit Addition and Subtraction (N)

For Students 1st - 2nd
In this addition and subtraction activity, students improve their math skills by solving the 3-digit addition subtraction equations. Students solve 49 problems.
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Worksheet
Curated OER

Three Digit Addition and Subtraction (L)

For Students 1st - 2nd
For this addition and subtraction worksheet, students improve their math skills by solving the 3-digit addition subtraction equations. Students solve 49 problems.
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PPT
Curated OER

Two Digit Addition (with regrouping)

For Teachers 2nd - 3rd
An outstanding PowerPoint presentation on two-digit addition with regrouping awaits your class. The slides present the steps necessary in extremely clear fashion. There are two "internet games" embedded in the final slide that lead to...