Worksheet
Curated OER

Addition Without Carrying

For Students 1st - 3rd
In this addition activity, students add one digit and three digit numbers together without regrouping. Students complete 30 problems total.
Worksheet
Curated OER

Checking Subtraction with Addition and Writing Number Sentences

For Students 3rd - 4th
In this math activity, students complete 12 subtraction problems which they check with addition. They solve 6 short mixed word problems and write a number sentence for each while solving it.
Worksheet
Curated OER

Addition Worksheet

For Students K - 1st
In this addition worksheet, students add together two numbers to solve 20 math problems involving whole numbers between one and nine.
Worksheet
Math Salamanders Ltd.

Column Addition - 3 Digits Sheet 6

For Students 2nd - 4th Standards
For this addition worksheet, students complete a set of 12 problems, adding two- and three-digit numbers. Numbers must be arranged vertically and problems completed. A reference website is given for additional activities.
Worksheet
Curated OER

Three-Digit Addition and Subtractions [M]

For Students 3rd - 4th
In this addition and subtraction worksheet, learners complete a total of 49 problems, adding or subtracting 3 digit numbers. Answers included on page 2.
Worksheet
Curated OER

Addition with Three Arguments

For Students 2nd - 4th
In this addition practice worksheet, students solve 40 problems that require them to add 3 addends. The addends have 1 and 2-digit numbers.
Lesson Plan
Curated OER

Oddball Patterns

For Teachers 5th - 8th
Investigating unique number patterns gets learners to put their thinking caps on. Your whole class examines numerical palindromes that are added and multiplied. The class works to find the pattern.
Lesson Plan
Illustrative Mathematics

1.OA, NBT, The Very Hungry Caterpillar

For Teachers Pre-K - 2nd Standards
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...
Worksheet
Houghton Mifflin Harcourt

Mental Math: Subtract Tens - Homework 12.1

For Students 1st - 3rd Standards
Now that your class can add by 10s they can start subtracting by 10s. This clear, learner-friendly worksheet provides a good example (10-rods are pictured) and 7 problems to solve. Relates groups of tens to single-digit numbers, which...
eBook
Library of Congress

Moby Dick

For Students 9th - Higher Ed Standards
Few first lines of literature are as well-known as the first line from Moby Dick by Herman Melville. Readers discover the classic text that contains these lines using a digital eBook. The online version contains page-by-page...
Worksheet
Curated OER

Standard written method for addition of two 3-digit numbers (1)

For Students 3rd - 5th
In this addition learning exercise, students learn how to add two 3-digit numbers. They then solve the 12 addition problems on the learning exercise. The answers are on the last page.
Lesson Plan
Curated OER

Number Sense

For Teachers 1st
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences instructional activity, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Worksheet
Curated OER

Change a Digit

For Students 2nd
In this tens and ones worksheet, 2nd graders add 4 math problems together and write the sums using 10s and 1s models as shown. Students change a digit in 2 math problems from 1 number to another number in the blanks provided.
Worksheet
Curated OER

Revise Subtraction (pg. 2)

For Students 4th - 5th
In this subtraction learning exercise, the students figure out 14 subtraction problems using regrouping, decimals, positive and negative numbers. The students must tell if the problems are true or false.
Worksheet
Curated OER

One-Digit Addition and Subtraction (H)

For Students 1st - 2nd
In this identifying the sums and differences worksheet, students add and subtract one-digit numbers. Students solve 49 problems.
Worksheet
Curated OER

One-Digit Addition and Subtraction (K)

For Students 1st - 2nd
In this identifying the sums and differences worksheet, students add and subtract one-digit numbers. Students solve 49 problems.
Worksheet
Curated OER

A+B Two Minute Test

For Students K - 2nd
In this addition facts practice worksheet, learners solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

E+F Two Minute Test

For Students K - 2nd
In this addition facts practice instructional activity, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

C+D Two Minute Test

For Students K - 2nd
In this addition facts practice instructional activity, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

E+F Two Minute Test

For Students K - 2nd
In this addition facts practice learning exercise, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

I+J Two Minute Test

For Students K - 2nd
In this addition facts practice worksheet, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

All Two Minute Test

For Students K - 2nd
In this addition facts practice worksheet, students solve 80 problems that require them to add 1-digit numbers to 1-digit numbers.
Worksheet
Curated OER

One-Digit Addition and Subtraction (D)

For Students 1st - 2nd
In this addition and subtraction practice learning exercise, students sharpen their math skills as they solve 49 problems that require them to add and subtract 1-digit numbers.
Worksheet
Curated OER

One-Digit Addition and Subtraction (E)

For Students 1st - 2nd
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 1-digit numbers.

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