Curated OER
Adding Three Numbers
In this addition activity, 2nd graders solve 11 three double-digit number addition math problems by lining up the numbers by tens and ones.
Curated OER
Adding and Subtracting Money
Students investigate U.S. currency by pretending to buy food. In this money lesson, students discover the vocabulary and value for each U.S. coin, then add the amounts in dollars and cents of food items they wish to purchase. Students...
Curated OER
Adding and Subtracting Money
In this math worksheet, students solve problems involving money. The first problem has four questions that guide the student through the problem solving process. The final four problems are computation problems involving money, but are...
Curated OER
Addition Drill #2 (0-10)
In this math worksheet, 2nd graders solve 30 one-digit addition problems with sums ranging from 0 to 10. Students notate their score, # correct and time.
Math Mammoth
Grade 1 Worktext
Use graphing, counting, and number lines to help first graders learn about addition and subtraction. An array of worksheets and activities are an excellent resource for your math lesson, whether you are focusing on counting skills or...
Curated OER
Tetrahedral Dice
Put those thinking hats on and look at all the possible outcomes from rolling two different four-sided dice. The challenge in this problem is finding all the combinations when adding and subtracting the numbers from each die and creating...
EngageNY
Interpreting Expected Value
Investigate expected value as a long-run average. The eighth installment of a 21-part module has scholars rolling pairs of dice to determine the average sum. They find aggregate data by working in groups and interpret expected value as...
Willow Tree
Fibonacci and Other Sequences
Fibonacci is an interesting sequence that forms some unique patterns. Learners explore sequences that do not have the typical arithmetic and geometric patterns. They identify the pattern and find the next consecutive terms....
Curated OER
Integers - Objects Model
Sixth and seventh graders solve 19 various types of problems related to integers as objects models. They write an integer that corresponds to each letter on a number line and then, arrange the integers from least to greatest. Pupils also...
Curated OER
Santa's List Sums (Hi)
In this adding single digit numbers worksheet, students observe a chart of street names, boys, and girls and find the total number of boys and girls on each street, the total number of children, and the total number of each sex. Students...
Curated OER
Santa's List Sums (Ii)
In this adding single digit numbers worksheet, students observe a chart of street names, boys, and girls and find the total number of boys and girls on each street, the total number of children, and the total number of each sex. Students...
Curated OER
Santa's List Sums (E1)
In this adding single digit numbers worksheet, students observe a chart of street names, boys, and girls and add the total number of boys and girls on each street, the total number of children, and the total number of each sex. Students...
Curated OER
Five Minute Adding Frenzy (A)
In this five minute adding frenzy worksheet, students problem solve four charts containing a hundred addition equations in each in less than five minutes for each one.
Curated OER
Number and Consecutive Integer Problems
In this word problem instructional activity, student solve 32 number and consecutive integer problems. High schoolers use variables and algebraic reasoning to solve each problem.
Curated OER
The Cross Number Problem
In this algebra worksheet, students complete a cross word puzzle using numbers instead of words. Every number between 1 and 9 can only be used once. There is an answer key with this problem.
Curated OER
Lesson 10-6: Using the Quadratic Formula
In this quadratic formula activity, students solve 5 quadratic problems. Students use the quadratic formula to find maximums, minimums, roots, and y-intercepts.
Curated OER
Mentally Add Two 2-Digit Numbers pg. 1
Mental math addition is the focus of this worksheet. Learners apply a strategy outlined in the worksheet to find the sums. In this worksheet, students find the answers for twenty problems. Answers appear at the end.
Curated OER
Butterfly Addition: Color by Numbers
Children learning to add numbers up to 11 develop the strategy of using the larger number as the first addend and counting on from there to find a sum. They define addition and review the meaning of the plus (+) symbol. To practice, they...
Curated OER
Review of Addition Facts
In this addition activity, 1st graders write down the addends that make up 5 and 6. They match addition problems to the sums 5 and 6, and find the missing addends in 10 problems. They compare equations to 5 and 6 using the symbols for...
Curated OER
Addition and Subtraction Facts to 20
Students act out computation problems. In this addition and subtraction lesson, students act out an addition story and write an addition sentence for it. Students continue this activity and answer the provided questions.
EngageNY
Addition and Subtraction Formulas 1
Show budding mathematicans how to find the sine of pi over 12. The third lesson in a series of 16 introduces the addition and subtraction formulas for trigonometric functions. Class members derive the formulas using the distance formula...
Cornell University
Atomic Bonding
Explore the connection of surface area to bonding within atoms. Learners complete lab investigations to model changing surface area with different sizes and concentrations of atoms. A flour fireball demonstration follows the labs to...
Curated OER
Addition
Those are some big addends! Challenge students to find the sum of 16 equations, each of which has at least three addends. They are adding, two, three, and four-digit numbers here, and regrouping is a given. Two example problems offer...
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.