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Table of Contents
Addition word problems show an increase in something or the combination of different parts to create a whole. Subtraction word problems show a decrease or loss in something or taking parts of a whole. Each sentence in a word problem can be translated into a mathematical operation.
See the fact file below for more information on the word problems: involving addition and subtraction or alternatively, you can download our 17-page Operations and Algebraic Thinking Word Problems: Involving Addition and Subtraction CCSS 1.OA.1 worksheet pack to utilise within the classroom or home environment.
Key Facts & Information
LEARNING OBJECTIVE
- At the end of the lesson, students will be able to solve word problems within 20, involving addition and subtraction.
A NOTE FOR THE TEACHER
- When teaching Addition & Subtraction, keep in mind the following:
- Remind the students that addition is putting things together, while subtraction is taking parts away.
- Remind the students that it is okay to use figures or objects to help them visualize the problems.
THEORY
- Addition word problems show an increase in something or the combination of different parts to create a whole.
- Subtraction word problems show a decrease or loss in something or taking parts of a whole.
- Each sentence in a word problem can be translated into a mathematical operation.
- For Addition:
- You may see keywords such as add, more, increase, received, etc.
- For Subtraction:
- You may see keywords such as minus, less, decrease, take away, deduct, etc.
- When solving a word problem, we always try to understand the situation shown to us. For example, David has 3 pencils. John gave him 10 more. How many pencils does David have now?
- First, we note how many pencils David had initially, which is 3. Then, John gave him 10 more. Since David received 10 more pencils, it means that we must add 3 and 10 together in order to find out how many pencils he has in total.
- So, by adding 3 and 10, we found out that David has 13 pencils.
- When using figures to add, we count the total number of parts.
- However, what if he gave someone else some pencils?
- For example, David has 13 pencils. He gave his friend, Marie, 6 pencils. How many pencils does David have left?
- Since David gave 6 pencils to his friend, that means we subtract.
- By subtracting 6 from 13, we found out that David has 7 pencils left.
- When using figures to subtract, we separate how many parts were taken out of the whole, and count how many remain.
Operations and Algebraic Thinking Word Problems: Involving Addition and Subtraction CCSS 1.OA.1 Worksheets
This is a fantastic bundle that includes everything you need to know about Operations and Algebraic Thinking Word Problems: Involving Addition and Subtraction across 17 in-depth pages. These are ready-to-use worksheets that align with the Common Core CCSS code 1.OA.1 for Operations and Algebraic Thinking Word Problems: Involving Addition and Subtraction.
Table of contents:
- A lesson plan
- Warm-up activity
- Math theory explained
- Assisted learning activities
- Independent learning activities
- Extension activities and games
- Answer keys
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Use With Any Curriculum
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