Worksheet
Curated OER

Subtraction In Two Digits

For Teachers 2nd - 3rd
In this math activity, students find the answers to the subtraction problems using two digits. The answers are found at the bottom of the page.
Worksheet
Curated OER

Subtraction Worksheet

For Teachers 1st - 3rd
For this math worksheet, students look for the answers to the 25 subtraction problems. The solutions are found at the bottom of the page.
Worksheet
Curated OER

Number Collection

For Students 4th
In this problem solving worksheet, 4th graders read 5 number questions and solve each one by utilizing 15 triple-digit numbers found in a circle. Students interact with odd and even whole numbers.
Worksheet
Curated OER

The Case of the Missing Numbers

For Students 1st - 3rd
In this finding the unknown numbers learning exercise, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
Lesson Plan
Curated OER

Water Bucket Relay

For Teachers 3rd
Third graders, in teams, play a subtraction game called Water Bucket Relay.
Lesson Plan
Curated OER

Regrouping Ten Ones for One Ten

For Teachers 2nd - 3rd
Students explore regrouping. In this hands-on math place value lesson, students construct models using connecting cubes and place value mats to solve simple addition problems that require regrouping.
Worksheet
Curated OER

Divide by 2 homework 10.4

For Students 3rd - 4th
For this dividing by two worksheet, students review using repeated subtraction, making equal groups, and related multiplication facts to divide one-digit and two-digit numbers by 2. Students solve seventeen problems.
Worksheet
Curated OER

Guess My Number

For Students 2nd - 3rd
In this finding the number worksheet, learners read clues and solve one-digit addition and subtraction problems to write the numbers in the tens and ones places and discover the missing numbers. Students solve five problems.
Lesson Plan
Curated OER

The Good, The Bad, The Ugly

For Teachers 6th
Sixth graders examine the causes of the stock market crash of 1929.  In this integrated math/history unit on the stock market, 6th graders study, research, and read stocks, visit a local bank, and create a PowerPoint to show the...
Lesson Plan
Curated OER

Investigation - Who is Right?

For Teachers 3rd
Third graders explore mathematics by solving problems in groups. In this math functions lesson, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of math...
Worksheet
Curated OER

Addition

For Students 3rd
In this addition worksheet, 3rd graders practice solving 10 addition problems involving 2-digit whole numbers. Students put their answers in the shapes provided.
Lesson Plan
Curated OER

The School Store

For Teachers 1st - 2nd
Young scholars choose between the operations of addition or subtraction to solve a real life problem. In this addition and subtraction lesson, students make a chart of items sold in the school store. Young scholars then work in teams to...
Worksheet
Curated OER

Ten Cards Game

For Students 5th - 7th
In this cards game, learners play a card game in three rounds.  In the first round, the student's objective is to gather the largest sum of cards.  For round two, students try to gather cards to equal a sum of 50.  In the...
Lesson Plan
Curated OER

Equal Shmequal by Virginia Kroll

For Teachers 1st - 3rd
Students read a book and complete exercises to explore the meaning of 'equals.' In this equal numbers lesson plan, students brainstorm the meaning of equals and read a story about the topic. Students use manipulatives to study balance...
Worksheet
Curated OER

How to Calculate Your Age by Chocolate

For Students 7th - 12th
In this math puzzle worksheet, students follow detailed directions to find their age. They begin with the number of times per week they eat chocolate. Their final answer tells how much chocolate they want or eat as well as their age.
Worksheet
Curated OER

Picture Subtraction

For Students Pre-K - K
In this subtraction worksheet, students solve a set of 3 farm animal picture problems, subtracting single digit numbers. A reference web site is given for additional activities.
Worksheet
Curated OER

Triple Digit Subtraction

For Teachers 1st - 3rd
In this math worksheet, students look for the answers to the 25 subtraction problems on the sheet. The ads are not appropriate for kids.
Worksheet
Curated OER

Fun Math: Subtraction Practice

For Students 3rd - 4th
In this subtractions worksheet, learners complete a total of 15 problems, subtracting a 3 or 4 digit number from a 4 digit number. Answers are included.
Worksheet
Curated OER

Addition and Subtraction sums and differences

For Students 2nd - 5th
In this sums and differences worksheet, learners are given a one digit number and they have to make up the addition or subtraction problem to make it equal to the number. Students complete 36 problems.
Worksheet
Curated OER

Easy Subtraction

For Students K - 1st
In this easy subtraction worksheet, students solve 3 picture and numeric problems of 1-digit numbers. A website reference is given for additional resources. 
Worksheet
Curated OER

Add or Subtract

For Students 1st - 2nd
In this addition and subtraction worksheet, students add or subtract the single, two, and three digit problems. Students use the provided space to solve the problems. Students solve 28 problems.
Worksheet
Curated OER

Subtract by Finding Difference-Counting On

For Students 3rd - 4th
In this subtraction worksheet, students solve a total of 10 problems, first "counting on" to solve, then determining whether to partition or count on to complete additional problems.
Worksheet
Curated OER

Mental Arithmetic

For Students 2nd - 3rd
In this mental math activity, students answer 2 sets of mental math questions about writing whole numbers, place value, counting back and on in tens and addition and subtraction.
Worksheet
Curated OER

Elimination Using Addition and Subtraction

For Students 10th - 12th
In this systems of equations instructional activity, students use the elimination method to solve systems of equations. An example and explanation is given at the beginning of the instructional activity. This one-page instructional...