Curated OER
Addition and Subtraction Mix--Level 1 Mix
Simple addition and subtraction is the focus of this worksheet which has students solve 100 addition problems and 100 subtraction problems involving single and double digit numbers.
Curated OER
Ways to Add
In this addition worksheet, learners learn several different options to add the numerals twenty-four and thirty. The options are models, mental math, a hundreds chart, or pencil and paper.
Curated OER
Sums to Ten
In these addition worksheets, students add the 1 digit numbers that have sums to 10. Students solve 100 single digit addition problems.
Curated OER
Addition with Carrying
In this addition instructional activity, students add one digit numbers to two digit numbers with regrouping. Students complete 30 problems total.
Curated OER
Counting Chart
Elementary learners discover counting through a counting chart. In this math lesson, students identify numbers 1-100. They then point or recite their counting numbers.
Curated OER
Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
Curated OER
Add Like the Romans
For this Roman numeral worksheet, students use the Roman numeral code to help them solve 4 problems that require them to add using Roman numerals. Students also respond to 1 math word problem.
Curated OER
Count on Tens to Add: Homework
In this counting on tens worksheet, students use the hundreds chart to help add the problems. Students complete six addition problems and one word problem.
Curated OER
Math Review for Grade 4 (4.1)
For this math review for grade 4 (4.1) worksheet, 4th graders answer 25 multiple choice problems in standardized test format about all areas of 4th grade math.
Curated OER
Mathematics: One Hundred Plastic Ants
Third graders pick up plastic ants scattered on the floor. They take them back to their desks, count them, and add their totals to those of other students.
Curated OER
Radioactive Half-Life
In this half-life worksheet, students determine how much of the radioactive isotopes will remain after a certain amount of time. This worksheet has 11 problems to solve.
Curated OER
A Frightening Mix of Math, A-Add or Subtract, But Look Out for the Monsters
In this math instructional activity, students add and subtract. Fifteen problems are subtraction, students subtract two digit numbers from three digit numbers. Regrouping is required. Twenty-one problems are addition, students add two...
Curated OER
Reading and Writing Numbers
Those are some long numbers! Scholars write number-form digits in word form and vice versa. The first eight are six-digit numbers and the next eight are seven-digit numbers. There are two examples to get them started. Remind scholars to...
Curated OER
More and Less
Mental mathematicians add and subtract 1, 10, and 100 from sets of numbers. Each set of one, two and three-digit numbers gives scholars a chance to practice their addition and subtraction skills. There are 62 whole numbers in all. What...
Curated OER
Subtracting
Subtraction word problems are the focus here. Learners are given 15 simple, one-step subtraction problems to solve. Some of them require subtracting money, others use inches and feet, while others use standard numbers. An excellent...
CK-12 Foundation
Concept of Limit
There's no limit to how useful the resource can be. Scholars use a slider interactive to investigate limits from graphs. They take both one-sided and two-sided limits into consideration.
DK Publishing
Real-Life Word Problems
Prepare your second graders for word problems with a straightforward review activity. Use it after a unit on addition and subtraction up to 100, or after you have worked on money math. A sample word problem prompts young learners to...
CK-12 Foundation
Percent of a Number: Rock Climbing
What percent of the 100 ft. rock has Marta climbed? Young mathematicians find the percent of number (the rock height) by moving the climber up and down the rock.
CK-12 Foundation
Percents as Decimals
In some cases, decimals are just easier to work with. An easy-to-use interactive shows how to convert percents to decimals. It then challenges learners to answer a set of questions, some of which include percents that are greater than...
Beverly Hills High School
Memoirs of a Legend
To conclude a study of the French Revolution, young historians adopt the voice of critics of Napoleon Bonaparte and lay charges against him. They then craft a memoir in Napoleon's voice that details his motives and what he sees as his...
Curated OER
Board Game
In this estimation worksheet, students roll dice and land on spaces in this Zombie Board Game and round the 3 digit number to the nearest one hundred. Students complete 30 problems.
Curated OER
Subtraction: Number Square
In this subtraction worksheet, learners use a hundred chart to find the differences. In this short answer worksheet, students solve ten problems.
Curated OER
Addition Worksheet #10
For this addition worksheet, students add 3-digit numbers, in groups of three. All problems are written in column form. Students will have to "carry" numbers. There are 16 addition equations on this one-page worksheet. An answer key...
Curated OER
Adding Integers 1-Counters
In this integer worksheet, students solve use pictures of red and blue counters to solve problems and write addition sentences. Example problems are completed for students.