Addition Strategies: Explanation & Word Problems
Introduction:
- In this session, you will understand which addition strategy can be used and learn to solve word problems by using different addition strategies that were learned in previous sessions.
- Solve.
Answer
2. Solve.
Answer:
3. Ashley has 5 blue toys and 9 red toys. How many toys are there with Ashley in all?
Answer:
Explain Addition Strategies:
Choose a strategy to solve the problem.
We can explain our work and the strategy we used.
Answer:
Example:
Milan says that he wants to find 8 + 5.
Solution:
Make 10 to add 8 + 5
Let us find this.
Doubles Plus:
Let us solve 8 + 5 by using doubles plus.
Solution:
8 + 5
= 3 + 5 + 5
= 3 + 10
= 13
Number Line:
We can also solve 8 + 5 by using a number line.
Here we use a number line as well as visual learning.
Visual Learning:
Example:
Jake has 9 pink balls and some red balls. He has 17 balls in all. How many red balls does Jake have in all?
Answer:
9 + 8 = 17.
Activity:
Make 10 to Add:
Solve.
Answer:
Exercise
| 1. Jon has 9 marbles. He got 2 marbles from his friend. How many marbles does Jon have now? 2. Solve 9 + 8. 3. Solve 5 + 6. 4. Solve 7 + 7. 5. Solve 9 + 10. 6. Solve 2 + 3. 7. Solve 5 + 7. 8. Amanda has 9 story books, she got some more story books from her uncle, and now she has a total of 18 books. How many books does Amanda receive from her uncle? 9. Solve 6 + 7. 10. 5 + 5 = ___. |
Concept Map:
What We Have Learned
- Explain addition strategies
- Word problems on ‘addition strategies’
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