Lesson Plan
Curated OER

Dividing By Two-digit Divisors

For Teachers 7th - 9th
In this dividing by two-digit divisors worksheet, students working with a partner problem solve and calculate the answers to ten word problems and mathematical division equations.
Lesson Plan
Curated OER

Understanding number to 100

For Teachers 3rd - 5th
Students research equivalent representations of numbers using the base 10 system. In this Base 10 lesson, students examine place value, representations of numbers, and multiples of one, ten, and one-hundred.
Lesson Plan
Curated OER

Subtracting Two-Digit Numbers

For Teachers 2nd - 3rd
In this math worksheet, students solve three word problems involving subtraction. The first problem is guided. Students use the questions to solve the problem. Students solve two more problems without the guide questions.
Worksheet
Curated OER

Mental Math Strategies

For Students 3rd - 4th
In this mental math worksheet, students study the detailed instructions and examples for adding or subtracting numbers using "breaking apart" or compensation. Students solve 17 mental math problems.
Lesson Plan
Curated OER

Regrouping With Remediation

For Teachers 4th
Fourth graders complete multiplication, addition, and subtraction problems that all contain regrouping. In this regrouping lesson plan, 4th graders complete worksheets not provided.
Lesson Plan
Curated OER

Water Bucket Relay

For Teachers 3rd
Third graders, in teams, play a subtraction game called Water Bucket Relay.
Printables
Curriculum Corner

“I Can” Common Core! 1st Grade Math

For Teachers 1st Standards
Any first grader can master the Common Core math standards with this checklist! With each standard rewritten as an affirmative I can statement, children are provide with clear goals to work toward throughout the school...
Lesson Plan
Curated OER

Two-Digit Subtraction With Regrouping

For Teachers 2nd - 3rd
Students practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. In this subtraction with regrouping lesson, students use the regrouping method to solve the 2-digit subtraction equations.
Lesson Plan
Curated OER

Popsicle Stick Regrouping Fun

For Teachers 2nd - 3rd
Students demonstrate regrouping in subtraction. In this math computation lesson, students use popsicle sticks to practice the regrouping strategy. Students practice several examples of regrouping problems in small groups.
Worksheet
Curated OER

Checking Subtraction With Addition

For Students 2nd
In this subtraction instructional activity, 2nd graders use the opposite operation to check their work. Students complete 6 double digit subtraction problems using addition to self check.
Lesson Plan
Curated OER

Deciding When to Regroup

For Teachers 3rd - 4th
In this deciding when to regroup worksheet, students, with a partner, practice problem solving five word problems associated with regrouping.
Worksheet
Curated OER

Long Division 4

For Students 3rd
In this math worksheet, 3rd graders complete problems demonstrating long division with no remainders. Students complete 16 problems of two digit division.
Worksheet
Curated OER

Dividing Two-Digit Numbers

For Students 4th - 5th
In this division with remainders worksheet, students solve 8 problems in which a two digit number is divided by a single digit divisor. There are detailed instructions on the page.
Worksheet
Curated OER

Zeros in the Quotient

For Students 3rd - 6th
In this division worksheet, students read through an example division problem in which there is a remainder. They then solve the 8 problems on the worksheet.
Worksheet
Curated OER

Dividing Multi digit Numbers

For Students 3rd - 6th
In this division learning exercise, learners read through an example of how to divide a multi digit number by a single digit number. They then complete the 9 division problems on the learning exercise.
Worksheet
Curated OER

Math Test B-Grade 2

For Students 2nd
In this grade 2 math test worksheet, 2nd graders complete a 30 question multiple choice quiz covering a variety of grade 2 concepts. 
Lesson Plan
Curated OER

Operations with Decimal Numbers

For Teachers 6th
Sixth graders demonstrate operations with decimal numbers. In this computation lesson, 6th graders play the game "Diabolical Decimals." The objects of this game is to construct the largest number after rolling a die five times. The...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtracting Using Tens and Ones

For Students 1st - 2nd Standards
[Free Registration/Login may be required to access all resource tools.] The video shows a model of how to group using tens and ones, subtract, and then count what is left using the grouping. The video is followed by a series of practice...
Unit Plan
Khan Academy

Khan Academy: Subtract 10s and 100s (No Regrouping)

For Students 1st - 3rd
Practice subtracting 1, 10, or 100 from a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Subtract 2 and 3 Digit Numbers (No Regrouping)

For Students 1st - 3rd Standards
Practice solving problems like 452 + 241. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Cool Math

Coolmath: Coolmath4kids: Subtracting Numbers Within 100

For Students 2nd - 3rd Standards
Short tutorial showing how to subtract using two-digit numbers in tens and ones columns without regrouping.
Handout
Cool Math

Coolmath: Coolmath4kids: Subtracting Numbers Within 100 With Regrouping

For Students 2nd - 3rd Standards
A step-by-step tutorial showing how to subtract using two-digit numbers in the tens and ones columns with regrouping. Includes sample problems to try. It also provides links to subtraction games and more.
Unit Plan
Khan Academy

Khan Academy: Subtract 1 or 10

For Students 1st - 3rd Standards
Practice subtracting 1 or 10 from a 2-digit number (no regrouping). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Subtracting 1s or 10s (No Regrouping)

For Students 1st - 3rd Standards
Practice solving problems like 67-5 and 67-50. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.