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Curated OER
Use a Number Line to Add - Practice
In this math learning exercise, 1st graders use a number line to practice finding the sums in 18 single digit addition problems. They complete a test prep question in which they find a sum and explain which number they should count from...
Curated OER
Three Addend Addition 2
In this addition practice instructional activity, students use their problem solving skills to solve 8 problems that require them to add multiple digit numbers. Each problem has 3 addends.
Curated OER
Adding two numbers
In this addition instructional activity, students complete 4 problems where they have to add two single digit numbers less than 10 together to find the sum.
Curated OER
Math Webs #1- Addition
In this elementary math worksheet, 3rd graders complete 4 addition math webs by adding the number in the middle of the web to those that are placed around it in a circular graphic organizer. They work with single digit numbers that may...
EngageNY
Sums and Differences of Decimals
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to...
Illustrative Mathematics
1.OA, NBT, The Very Hungry Caterpillar
First graders are exposed to addition of three whole numbers in a math activity centered around Eric Carle's, The Very Hungry Caterpillar. As the teacher reads, young mathematicians use counters and ten-frames to symbolize the number of...
Curated OER
Estimating Sums of Money
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Curated OER
Addition
In this addition worksheet, students solve 20, 3-digit addition math problems mentally. Students put their answers down on paper, but do not work out the problems on paper.
Curated OER
Add and Compare enrichment 10.5
In this addition learning exercise, students add the ones columns and fill in the carry squares, add the tens, then order the sums. Students solve ten problems.
Curated OER
Addition: Two Digit Mental Addition
In this 2-digit addition worksheet, students learn how to solve 2-digit math problems in their heads instead of on paper. They then solve the 20 problems on the worksheet. The answers are on the last page.
Curated OER
Horizontal Three Digit Place Value Addition
For this addition practice worksheet, students solve 16 problems that require them to add using 3 addends. The addends include a 3-digit number, 2-digit number, and 1-digit number.
Curated OER
Addition: Level 3: 2x1 Exercise 2 Carryovers
In this online addition worksheet, students add the double digit number with the single digit number and carry over to find the correct answer. Students enter their answers in the boxes and click submit.
Curated OER
Solving Two Digit Multiplication Problems
In this two digit multiplication activity, students solve 16 problems in which two digit numbers are multiplied, both with and without carrying.
Curated OER
Addition with Sums to 10
For this addition facts practice worksheet, students solve 12 problems that require them to add 1-digit numbers to 1-digit numbers.
Curated OER
Addition with Sums to 20
In this addition practice worksheet, students solve 12 problems that require them to add 1-digit numbers to 1 or 2 digit numbers.
Curated OER
Addition with Sums to 20
In this addition practice worksheet, students solve 15 problems that require them to add 2-digit numbers to 1-digit numbers with sums to 20.
Print and Practice
Adding to 20 With Andy
For this addition to 20 worksheet, students complete a set of 24 problems, adding 1 and 2-digit numbers with sums to 20. Answer key is included.
Curated OER
Study Buddies: Subtracting Three-Digit Numbers
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.
Curated OER
Grouping Numbers
In this grouping numbers worksheet, 2nd graders study 3 groups of numbers, circle the sentences that best describes the numbers and then write another number that fits the group.
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Adding Two-and Three-Digit Numbers
In this addition worksheet, 4th graders solve word problems as well as add two and three digit numbers together to solve 23 problems.
Curated OER
Decimal Addition
In this decimal addition worksheet, 7th graders solve 20 different problems that involve adding decimals. First, they write one decimal above the other with their decimal points lined up. Then, students add the two numbers as they would...
Curated OER
Partial Sums
Students add numbers and represent digits in extended form. In this extended form lesson plan, students complete this with 2 digit addition problems.
Curated OER
Add Greater Numbers
In this addition practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to add 4-digit numbers.
Curated OER
Adding 0 Practice #1
In this addition worksheet, students find the sums to 35 single digit, vertical addition problems in which 0 is an addend. They add the numbers 1 through 9 to 0.