Curated OER
Mental Addition and Subtraction
Students play the online game ArithmAttack to practice mental math skills. They play the game to as many additions or subtractions as possible in sixty seconds. Afterward, they complete a paper based follow up exercise.
Curated OER
Make a Ten
Youngsters mentally perform calculations involving addition and subtraction. They solve various addition and subtraction word problems using mental math and counters, write their own number stories, and solve various examples...
Math Worksheets Land
Add and Subtract to 100
Get some practice with double-digit addition and subtraction from all directions! Learners complete two equations for each operation, one horizontally and one vertically. Consider your objective with this one; do you want scholars to use...
Curated OER
Teddy Bear Subtraction
Do this exercise to prime early learners for a day of subtraction. They discuss problem-solving strategies, listen to a story problem involving teddy bears, then go to their assigned math station. This is a great way to prime the day.
Curated OER
Find the Difference--Mental Arithmetic
In this subtraction worksheet, 3rd graders solve 4 subtraction problems mentally and then write their answers in the boxes provided. Students fill in the missing numbers in 11 problems and explain how they got to their answers in the...
Curated OER
Subtraction
Learners explore subtraction. In this mathematics lesson, students practice how to subtract numbers from 20, 100 and other whole numbers. Learners realize that there are number bonds which can help with subtraction like 3 and 17 bonds to...
Curated OER
Subtract With Unlike Denominators - Practice 5.4
Fifth and sixth graders subtract 15 mixed fractions with unlike denominators and reduce each one to their simplest form. They write and solve two subtraction problems for each model shown. Pupils find the value of n in four Algebra...
Curated OER
Match the Sums and Differences Worksheet
Because these eight addition and subtraction equations are written horizontally, learners will need to either re-write them or use mental math to solve them. Depending on your objectives, either would be a fine use of this worksheet....
Curated OER
Mental Math
Students participate in an online computation game. In this computation lesson, students practice simple computations and use an internet site to review addition and subtraction facts.
Curated OER
Fantastic Fractions
Young math whizzes solve 20 various types of equations related to fractions. First, they state each portion shaded as a fraction in lowest terms. Then, they determine the missing numerator or denominator and determine the value of each...
Curated OER
Arithmetic: Fractions and Percentages
Young mathematicians review the basic operations needed for addition and subtraction of fractions. They review the rules for addition and subtraction of fractions with the same denominator, how to change them if the denominators are...
Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Alabama Learning Exchange
Ice Fishing is for the Birds
Approach addition with young mathematicians in an engaging way through this penguin-inspired activity. In small groups, scholars think about times they have used addition in their real lives (there are some suggestions given), then watch...
Curated OER
Twenty-Five: A Math Card Game
Students calculate addition and subtraction problems using mental math. They add and subtract cards numbered one through nine until a player gets a sum of twenty-five.
Curated OER
Estimate, Solve, and Check
Young scholars estimate, solve, and check a series of addition and subtraction number and word problems. They write their estimates on a recording sheet, compute and write the answer in the next column, and check their answer with a...
Curated OER
All A-buzz About Math
Second graders participate in Math-Eze activities to comprehend word problems. In this word problem lesson plan, 2nd graders recognize why a hexagon is the best shape for a beehive. Students calculate how far bees must travel to find 2...
Curated OER
Using Math with Sale Papers
Fifth graders estimate their results and then prove through calculations. In this math lesson, 5th graders solve problems using multiplication, division, addition, and subtraction. They also use mental math to solve their problems.
Curated OER
Two-Digit Subtraction With Regrouping
Students practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. In this subtraction with regrouping lesson plan, students use the regrouping method to solve the 2-digit subtraction...
Curated OER
Place Value, Addition, and Subtraction
In these math review worksheets, students complete several addition, subtraction, and place value problems. Students complete 17 problems.
Curated OER
Subtraction: Fill in the missing digit
In this subtraction facts worksheet, students solve 30 subtraction problems that are missing a number. Students must fill in the missing number that makes the equation work.
Curated OER
Subtraction-2-Digit Numbers, Sheet 4
In this subtraction worksheet, students use subtraction facts to find missing numbers in problems. A reference web site is given for additional activities.
Curated OER
Add and Subtract to 100
These addition and subtraction problems probably aren't written the way your scholars are used to seeing them, especially since they have double-digit addends and subtrahends. This set of eight horizontal equations gives learners a...