AAA Math
Aaa Math: Inverse Relationship of Subtraction and Addition
Students explore the inverse relationship of addition and subtraction. The resource provides self-check exercises and timed learning games to practice the concept.
Math Slice
Math Slice: Math Crossword Slice Special Test
Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.
Beacon Learning Center
Beacon Learning Center: Checking Subtraction
Students can explore the inverse relationship of addition and subtraction in this interactive web lesson.
University of Saskatchewan (Canada)
Emr: Exercises in Math Readiness
Practice your mental math skills with this site, where practice problems in addition, subtraction, multiplication, and division abound. Introductory, intermediate, and advanced levels are available. Just type in your answer and you'll...
ReadWriteThink
Read Write Think: Draw a Math Story From the Concrete to the Symbolic
Contains plans for four cross-curricular lessons that ask students to write simple addition and subtraction stories after reading a number of models. In addition to objectives and standards, this instructional plan contains links to PDF...
Scholastic
Scholastic: Study Jams! Math: Addition and Subtraction: Without Regrouping
Solve word problems with addition and subtraction without regrouping. Then test your knowledge.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtraction Quiz
Practice subtraction skills for numbers 1 to 9 with this interactive assessment. Click check my answers to verify answers and do it again to practice more.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 9
Practice subtraction facts up to nine with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 4
Practice subtraction facts up to four using this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 5
Practice subtraction facts using this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Subtracting With Multiple Choices Math Facts
Practice subtraction facts 4 to 9 with this interactive multiple choice activity.
Khan Academy
Khan Academy: Relate Addition and Subtraction
Practice seeing how addition and subtraction are related. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
ABCya
Ab Cya: Balloon Pop Subtraction
The learning game review subtraction facts. Players pop balloons to solve the subtraction problems.
Annenberg Foundation
Annenberg Learner: Equivalent Expressions
Determine if nine mathematical expressions are equivalent to 20. Then match the equivalent expressions to corresponding word problems.
Khan Academy
Khan Academy: Subtraction Word Problems Within 10
Practice solving word problems by subtracting small numbers (numbers 10 or less). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Is Fun
Math Is Fun: Word Questions: Elementary Subtraction
Simple word problems challenge your subtraction skills. If you get stuck, use the clues and the number line for help.
Fun Brain
Fun Brain: Math Baseball
Subtraction with numbers less than five is investigated in this math resource. Players answer subtraction problems to score runs.
Education.com
Education.com: k.oa.a.1 Worksheets
[Free Registration/Login Required] Choose from a variety of worksheets which help students practice addition and subtraction with objects, fingers, mental images, and drawings.
Better Lesson
Better Lesson: Subtraction Number Stories Day 2
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Better Lesson
Better Lesson: Hopping Up & Down the Number Line
SWBAT identify the subtraction and addition sign and understand their function by hopping a bunny up and down a number line.
Better Lesson
Better Lesson: Subtraction Number Stories Day 1
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Better Lesson
Better Lesson: Subtraction Number Stories Day 3
Students will be able to create their own number stories and represent them using one of the methods we have learned in this unit.
Better Lesson
Better Lesson: Math Centers Review Previous Skills
Students will be able to independently practice graphing, teen numbers, and addition.