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.
Math Aids
Math Aids: Fact Family Worksheets
Great resource to practice and strengthen math skills pertaining to fact families. Math worksheets are printable, may be customized, and include answer keys.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine what number sentence is missing in the fact family.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 100
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence by using fact families.
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence when adding and subtracting 3-digit numbers by using fact families.
E-learning for Kids
E Learning for Kids: Math: Penguins: Subtraction Facts to 20
Adelie the Penguin is fishing for her family. Join her and practice solving subtraction facts to 20.
Math Slice
Math Slice: Practice Tables
This resource covers multiplication facts where students pick the fact family they are working on and solve the multiplication problems in order from 1-10. Students are given instant feedback when completing problems.
History is Fun
Jan Brett: Multiplication Facts Flashcards for 3 Pdf [Pdf]
Print out these colorfully illustrated PDF file pages to practice your multiplication facts when multiplying by three. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put...
Other
Nearpod: Adding & Subtracting: Properties of Addition
For this lesson on adding and subtracting, students will learn to idenitfy and apply the commutative and associative properties of addition while utilizing their knowledge of fact families to correctly solve problems.
Scholastic
Scholastic: Study Jams! Math: Multiplication & Division: Multiply & Divide
This site provides great practice on the concepts of multiplication and division and how those two topics relate. Students can first learn about the topic by watching a step by step instruction video that also points out areas of...
Alabama Learning Exchange
Alex: Mix It Up!
By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...
Alabama Learning Exchange
Alex: Hurricanes
This lesson starts out with a short video clip of Hurricane Ivan and shows the pattern it followed. Emphasis is placed on the fact that Hurricane Ivan struck and the eye traveled over Alabama. Discussion of hurricane facts follow....
Alabama Learning Exchange
Alex: Popping Hot
In this instructional activity students will discover the different forms of heat transfer such as conduction, convection, and radiation and that these forms can be demonstrated by popping popcorn. Students will learn the health benefits...