Houghton Mifflin Harcourt
Area - Homework 18.3
Presenting perfect practice for finding perimeter and area of a rectangle. Three rectangles are depicted, three sets of sides are listed, and one real-life application described for which youngsters compute both values. The...
Math Learning Center
Third Grade Assessments and Scoring Checklists, Common Core State Standards
How are your learners doing with place value? Track their skill levels with a set of math assessments. The packet includes worksheets to hand out to your class, scoring checklists, a calendar for implementation, and instructions for...
Cold Spring Harbor Laboratory
A Half DNA Ladder Is a Template for Copying the Whole
The experiment known as one of the most beautiful experiments in biology changed the way we think about DNA. Learn about the experiment and the scientists who designed it—as well as the scientists who built on the results—with an online...
Curated OER
Fractions XI Adding Mixed Numbers with Unlike Denominators
This PowerPoint demonstrates how to add mixed numbers with unlike denominators. The slides display examples of problems, along with steps that students can easily follow.
Curated OER
Addition Without Regrouping
In this finding the sums worksheet, students use a number line to help add one-digit and two-digit numbers with no regrouping. Students solve 20 problems.
Curated OER
Easter Addition
In this Easter addition worksheet, young scholars problem solve and calculate the answers to twenty-five addition equations and color all of the Easter eggs that have an even numbered sum.
Curated OER
Adding Integers with Counters
Students add integers and use counters to create a visual. In this algebra lesson, students work in pairs as they use the computer to add integers. They complete an assessment on adding integers at the end of the activity.
Curated OER
Addition With Decimals B
In this decimal addition worksheet, students solve 30 problems in which decimal numbers to the ten thousandths place are added. The first half of the page has problems shown vertically with the decimal points already lined up. The second...
Curated OER
St. Patrick's Day Addition (Sums to 50 With No Regrouping)
In this math learning exercise, students solve 20 problems in which 2 digit numbers are added to 2 digit numbers with no regrouping. The page has a St. Patrick's Day theme.
Curated OER
Mentally Add 3 Digit Numbers
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.
Curated OER
More Addition in Your Head
In this mental math addition worksheet, students determine sums. In this problem solving worksheet, students write answers to twenty problems.
Curated OER
Abraham Lincoln Addition Puzzle
In this math worksheet, students solve 50 basic addition facts below 20. Using the sums and the key, students decipher the secret message about Abraham Lincoln.
Curated OER
Basketball Addition Puzzle
In this math worksheet, students solve 25 basic addition facts below 20. Using the sums and the key to the code, students decipher a secret message about basketball.
Curated OER
Baseball Word Puzzle and Addition Facts
In this math worksheet, students solve 25 basic addition facts below 20. Using the sums and the key to the code, students decipher a secret message about baseball.
Curated OER
Target 20 Balloons
In this addition practice worksheet, students use the numbers 1-20 to write 3 addition sentences. Each of the addition sentences should have a sum of 20 and students may only use each of the numbers 1-20 one time on the worksheet.
Curated OER
Triple Digit Addition
In this addition practice worksheet, students sharpen their math skills as they solve 20 problems that require them to add 3 digit numbers to 3 digit numbers.
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Triple Digit Addition 3
In this addition practice worksheet, students sharpen their math skills as they solve 20 problems that require them to add 3 digit numbers to 3 digit numbers.
Curated OER
Triple Digit Addition 2
In this addition practice worksheet, students sharpen their math skills as they solve 20 problems that require them to add 3 digit numbers to 3 digit numbers.
Curated OER
Addition Up to 10: Speed Race 3 and 4
In this addition worksheet, students find the sums to 20 single digit addition problems. They try to work more quickly than the previous day.
Curated OER
Addition Facts (Chinese New Year Puzzle)
In this math learning exercise, learners solve 15 basic addition facts with sums up to 20. Using the answers and the code key, students decipher the secret message about Chinese New Year.
Curated OER
Rounding to the Nearest Hundred
In this rounding worksheet, students round three digit numbers to the nearest hundred. Students round 20 numbers to the nearest hundred.
Curated OER
Addition to Solve System of Linear Equations
In this algebra worksheet, students solve system systems of equation. They use addition to solve the problems. There are 6 questions with an answer key.
Curated OER
Integer Addition
Seventh graders explore the concept of integer addition. In this integer addition lesson, 7th graders tell stories involving addition and subtraction. Students walk on a number line given directions such as add 3 or add -2. Students play...
Curated OER
Addition of Numbers (Under 100) - Matching Worksheet
First graders are asked to match the correct answer with eight addition equations. No word problems or illustrations are included on the worksheet.