Curated OER
Addition Grid
Which of these numbers add up to 20? Scholars find various addend pairs in a grid, circling those that add up to 20. There are many pairs they can find here, and the answer sheet offers some excellent kinesthetic practice ideas for...
Curated OER
And 5 More Makes...
By drawing five more objects to existing sets, scholars begin to understand the concept of addition. They count pails and draw five more, totaling them and recording the sums. There are three of these followed by four more similar...
CK-12 Foundation
Proofs: Angle Pairs and Segments—The Three Angle Problem
Finding the sum of the measures of three angles is easy, unless you have no clue what the measures are. Learners use an interactive diagram to see a geometric problem in a different way. A set of challenge questions takes them through...
CK-12 Foundation
Sum and Difference of Cubes: Stacking Blocks
Investigate polynomial factoring patterns by finding a connection to volume. As learners build a three-dimensional solid from smaller solids, they convert the visual model to a mathematical expression. Their models represent the sum of...
Curated OER
The Number of Neutrons
Although the focus of this learning exercise is the neutron, you cannot talke about them without also dealing with protons and electrons! Chemistry kids fill in a table of 14 elements, identifying the mass, atomic number, isotopic...
Curated OER
Comparing a Number and a Product
Mental math strategies are important for fifth graders to be able to determine the greater sum without actually solving the equations. As a summative assessment, this eight-problem worksheet can give insight into the understanding of the...
Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
CK-12 Foundation
Addition of Integers: Number Blocks
A five-question interactive provides a horizontal number line where integers are stacked on top of one another to find solutions of addition problems. Mathematicians move numbers to the numbers line, as numbers build higher, the sum of...
Curated OER
And 4 More Makes...
How many will there be if we add four more? Scholars examine sets of sports balls, drawing four more and totaling them. Sums in these four problems don't exceed 10, and the numbers 0-10 are written below for learners to reference as they...
CK-12 Foundation
Sums and Differences of Independent Random Variables: Traveling Seasickness
Use a Punnett square to calculate probabilities. The resource presents a situation in which two patients are randomly selected from a group of patients with a particular illness. Pupils use the interactive to determine the likelihood...
CK-12 Foundation
Sums of Integers with Different Signs: Board Game
Five questions challenge scholars to show what they know about integers. Using an interactive board game, learners move pieces to discover where a player landed, then answer problems involving both positive and negative integers.
CK-12 Foundation
Sums of Fractions with Like Denominators: Cheesy Bread
Five questions make up an interactive all about adding fractions with like denominators. Mathematicians answer multiple-choice problems and an open-ended question using a fraction model that resembles sliced bread. The practice ends with...
Curated OER
The New Texas Two-Step
Sixth graders work with mathematical expressions by interpreting, analyzing and problem solving with them. In this two step algebraic problem solving lesson plan, 6th graders use algebra tiles to solve equations.
Curated OER
Five Minute Adding Frenzy (A)
In this five minute adding frenzy worksheet, students problem solve one hundred addition equations within five minutes by writing the sum of the column and row numbers in each space.
Curated OER
Number Search Y4: Make 12
In this number search activity, students find and highlight at least 12 addition, subtraction, multiplication and/or division math problems that make the sum of 12.
Curated OER
Number Search Y6 Make 24
In this number search worksheet, students find the sums in the number search that equal 24 and circle them. They can be multiplication, addition, subtraction, and division. They then write the sums in the space at the bottom of the page....
Curated OER
Book Title: One is a Snail, Ten is a Crab
Students read a story and write math problems. In this reading and math comprehension lesson, students preview and read the book "One is a Snail, Ten is a Crab". Students predict ways to get a sum of 11, write math equations and draw...
Curated OER
Domain: Operations and Algebraic Thinking
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
MathMovesU
Negative Numbers Practice
A collection of nine integer worksheets, middle schoolers practice computing the positive and negative values in a variety of problems. Adding, subtracting, multiplying, and dividing integers are the skills conveyed in these resources.
Illustrative Mathematics
Looking at Numbers Every Which Way
Assess class members' ability to look at numbers every which way. A helpful learning exercise contain four tasks, including writing numbers as a sum of 100's, 10's, and 1's, and drawing a picture to represent the number.
Curated OER
Visual Sum and Difference Word Problems - Independent Practice
The ten prompts on this worksheet 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 be a...
Curated OER
Errors in Riemann Sums
In this Riemann Sums worksheet, students use the Riemann Sums method to approximate the area under the curves. This two-page worksheet contains three problems.
Curated OER
Riemann Sums and Error Stacks
In this Riemann sums worksheet, students use accumulation to find the estimate for the area of a given shape. Students use Riemann sums to estimate the area under the curves and error stacks to bound the error of their approximation....
Curated OER
Estimating Sums and Differences
In this math worksheet, learners 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...