About the
Add or Subtract
Lesson
Summary
Learn to use addition or subtraction.
Lesson Objectives
• Students will be able to determine whether to use addition or subtraction to solve a word problem.
•
Students will solve word problems and state answers in complete sentences.
Suggested Grades
1st Grade
2nd Grade
3rd Grade
Lesson Excerpt
ADD to put things together.
SUBTRACT to take some away.
A clue that you have to add is a word like “and” or “also”. Another clue that you have to add is a question like: How many are there all together?
A clue that you have to subtract is a question like: How many are left?
Example: I have 6 cookies. I give my friend 2 cookies. How many cookies do I have left?
Continued...
