Illustrative Mathematics
$20 Dot Map
Challenge the addition skills of young learners with this open-ended math problem. The task is simple, get from start to finish by connecting a series of three numbers. The trick is that the sum of the numbers must be less than or equal...
Concord Consortium
The Trouble with Tables
Tackle these tables. A performance task has learners complete two puzzles using addition and subtraction. They must fill in tables with missing addends, sums, minuends, subtrahends, or differences.
Math Worksheets Land
Unknown Numbers in Sums and Differences
You've hit the word problem jackpot with this set of 10 addition and subtraction scenarios! For each, learners have to find a missing number. Sometimes it is the sum or difference, and for others, an addend or minuend. For each, there is...
DK Publishing
Adding with 3-digit Numbers #2
These 25 addition problems each have two 3-digit addends, and many require regrouping. There are three examples to guide learners in all the types of problems they encounter, including the last set of five which have four-digit sums....
Houghton Mifflin Harcourt
Sums to 100
Whether it's counting marbles, flowers, or playing cards, small objects can add up to great sums. Learners work six story problems to practice addition to 100. Some regrouping is required, along with distinguishing useful from irrelevant...
abcteach
Simple Integer Addition
Add to your collection of math resources with this skills practice instructional activity. Offering dozens of addition problems with sums less than 100, this resource is a simple way to hone the basic skills of young mathematicians.
Curated OER
Missing Sums and Addends
In this recognizing two-digit addition facts worksheet, students use a number line and addition facts to find the missing sums or addends in problems with and without regrouping. Students solve 20 problems.
Curated OER
Sum of Interior Angles
In this sum of interior angles worksheet, 10th graders solve 10 different problems that are related to determining the sum of various interior angles in figures. First, they determine the sum of the interior angles of a dodecagon. Then,...
Curated OER
Add Mixed Numbers With Like Denominators (G)
In this adding mixed numbers worksheet, students find the sums of whole numbers and fractions with common denominators and reduce and rename the answers. Students solve 7 problems.
Curated OER
Adding With Regrouping (A)
In this addition review worksheet, students use problem solving skills to solve 35 problems that require them to add 1 digit numbers with regrouping.
Curated OER
One-Digit Addition; With Regrouping (B)
In this addition review worksheet, students use problem solving skills to solve 100 problems that require them to add 1 digit numbers with regrouping.
Curated OER
One-Digit Addition; With Regrouping (B)
In this addition review activity, learners use problem solving skills to solve 64 problems that require them to add 1 digit numbers with regrouping.
Curated OER
Estimating Sums and Differences
In this math worksheet, students learn to estimate sums and differences by completing step by step exercises. There is one word problem which is the example, and then students can choose from other estimation activities to do with a...
West Contra Costa Unified School District
Divisibility Rules Justified
How do you know if a number is divisible? Instructors first prove the divisibility rules for three and four and then class members use this modeling to prove given divisibility rules for eight and nine either individually or in groups.
Curated OER
Visual Sum and Difference Word Problems - Independent Practice
The ten prompts on this learning exercise are intended for independent practice with addition and subtraction of numbers up to 3000. Space is provided for pupils to illustrate their work. The confusing wording of some the problems would...
Curated OER
Estimate Sums
For this estimating sums worksheet, students round numbers to the greatest place and then add them to solve 23 problems. Students also solve 2 test prep questions.
Curated OER
Adding with Different Numbers of Digits
Expand addition concepts by challenging your pupils with these multi-digit addends. They add up numbers with up to seven digits, regrouping where needed. The first six are written vertically and the next two are horizontal. Make...
Mathematics Vision Project
Geometric Figures
Logical thinking is at the forefront of this jam-packed lesson, with young mathematicians not only investigating geometric concepts but also how they "know what they know". Through each activity and worksheet, learners wrestle with...
Curated OER
Addition with 9
In this addition with 9 worksheet, 1st graders add the number nine to numbers from 1 to 10. They find the sums to 320 questions on 20 pages.
Curated OER
Adding Two Numbers
Keep addition drills interesting by varying the exercises. There are four separate sections here for youngsters to solidify their understanding of adding three-digit addends. First, they calculate eight vertically aligned equations,...
Curated OER
Dice Games
Games and activities are wonderful for igniting interest in nearly any topic. With a pair of dice, your class will practice their basic math and social skills at the same time. Learners battle it out to see who can roll only odds or only...
Curated OER
Math Lesson Plan: Super Easy 9 Times Tables Trick
Students practice their times tables. In this multiplication practice lesson, students learn and practice a method that helps them remember the 9 times table.
Curated OER
Add Mixed Numbers with Like Denominators (J)
In this mixed number addition worksheet, students add the whole numbers and then the fractions in the mixed number equations. Students then reduce the fraction to solve the 14 problems.
Curated OER
Add Mixed Numbers With Like Denominators (A)
In this math worksheet, students solve 16 problems in which mixed numbers with like denominators are added. Problems are written in horizontal format.