Curated OER
Sieve of Eratosthenes
Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.
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Mathville 1
In this addition and subtraction worksheet, 1st graders add fifteen pairs of numbers between one and ten. They subtract on five problems. Three subtraction problems require regrouping.
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Subtraction Facts
In this subtraction facts worksheet, 5th graders solve 40 basic subtraction facts. Both one and two-digit subtraction are provided.
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Addition and Subtraction Facts To 20
First graders use manipulatives, flash cards, number sentences and story problems to practice their addition and subtraction facts to twenty.
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Basic Subtraction Facts
For this math worksheet, students solve 48 basic subtraction facts with differences up to 10. Problems are in a vertical format on a grid paper background.
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Subtraction Facts
For this subtraction facts worksheet, 4th graders solve 40 basic subtraction facts. Subtraction facts include both single and double-digit numbers.
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Basic Subtraction Facts
In this subtraction worksheet, students practice their subtracting skills by solving twenty problems. Students do basic subtraction or fill in the missing number to complete the subtraction problem.
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Subtraction Worksheet
In this subtraction skills worksheet, students solve 4 problems that require them to subtract visual number sentences by counting the pictures, writing equations, and finding the differences.
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Subtraction Arrow Road
In this subtraction skills worksheet, learners choose numbers to put into a subtraction problem and complete math puzzles by subtracting the identified amounts.
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Christmas Subtraction Fact Book
In this holiday math worksheet, students place a number of their choice in the star on top of a Christmas tree drawing. Students subtract the given numbers on the tree from this number and put the answers on the lines provided.
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Subtraction Worksheet
In this subtraction worksheet, students solve a total of 20 simple problems, subtracting a 1-digit number from a 20 digit number.
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Subtraction-- Fill in the Gaps
In this math worksheet, students practice finding the missing numbers in a subtraction problem. There are 90 subtraction problems which are written horizontally, most with 2 digits. The answers are shown, but there is a missing number in...
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Subtraction Worksheet
In this subtraction worksheet, 1st graders practice their subtraction skills by subtracting the numbers and solving the 20 single and double digit problems.
EdHelper
Subtraction
In this subtraction instructional activity, 1st graders use the number line to help them find the missing number in the single digit subtraction equations. Students solve 25 problems.
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Subtraction Worksheet
In this subtraction worksheet, 1st graders practice their subtraction skills by subtracting the numbers and solving the 20 single and double digit problems.
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Subtraction Worksheet
In this subtraction worksheet, 1st graders practice their subtraction skills by subtracting the numbers and solving the 20 single and double digit problems.
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Integer Subtraction; Range -9 to 9 (H)
In this integer subtraction learning exercise, students enhance their subtraction skills by subtracting the integers from -9 to 9. Students solve 54 problems.
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Subtraction Worksheet
In this subtraction worksheet, 1st graders practice their subtraction skills by subtracting the numbers and solving the 20 single and double digit problems.
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Subtraction
In this subtraction worksheet, students subtract the double digit cent amounts for the 14 problems. Students enhance their subtraction skills.
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Subtraction 1
In this math activity, students practice subtraction facts by completing 90 problems which are written horizontally. The largest number on the page is 20.
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Using Subtraction Strategies 2
In this subtraction strategies worksheet, students review the ways to subtract and then solve the subtraction problems. Students also answer a test prep question.
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Fact Family Frenzy
Second graders explore fact families and inverse relationships between addition and subtraction. They use flashcards to model the inverse relationships. Students complete the equations for each fact family.
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Let's Make Subtraction Movies!
First graders make subtraction movies. In this subtraction lesson plan, 1st graders review subtraction facts and subtraction sentences. Students work in groups to create subtraction sentences using cereal or marshmallows. Students then...
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Intro To Subtraction-A: Subtraction Means You Take Away
In this subtraction worksheet, students solve 42 problems in which single digit numbers are subtracted. There are illustrated examples at the top of the page.