Curated OER
Using Addends and Sum/Using Subtrahend, Minuend, and Difference
What is an addend? What is a sum? Review this math terminology on the top half of the worksheet before practicing basic addition.
Curated OER
Missing Number
First graders examine how to use a symbol and shape variable to represent a missing value in a mathematical equation. They listen to the book "Fish Eyes" and "One Less Fish," and observe the teacher write an equation represented for each...
Curated OER
Two-Digit and Three-Digit Subtraction
In this subtraction worksheet, students subtract two-digit numbers from three-digit numerals. This one-page worksheet contains ten problems.
Curated OER
Subtraction Facts Quiz
In this subtraction worksheet, students are timed as they solve one and two digit subtraction problems. In five minutes or less, students answer fifty subtraction problems in this one page worksheet. All subtrahends are one digit...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Related Subtraction Facts
[Free Registration/Login may be required to access all resource tools.] The video describes the parts of a subtraction problem and explains why subtraction facts are related. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Terms Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video describes addition and subtraction vocabulary. The video is followed by practice problems utilizing the vocabulary.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
NumberNut
Number Nut: Subtraction: 3 Digit Numbers
A brief lesson on subtracting from three-digit numbers that includes detailed examples, rules, and further explanation of borrowing.
Mr. Martini's Classroom
Mr. Martini's Classroom: Subtraction: Fill in the Blank
Students fill in the blanks to solve subtraction fact problems on these interactive flashcards. The problem changes color when the correct number is typed.
Lizard Point Quizzes
Lizard Point: Subtraction Practice
At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...