Addition and Subtraction: Counting On Number Bonds to 20 - Block 1 Week 1

In this lesson, students practice addition and subtraction by counting on using number bonds to 20. They learn to add by counting on and solve simple word problems involving adding and subtracting numbers. The lesson includes visual aids and reasoning exercises to reinforce understanding.

• Addition
• Subtraction
• Number Bonds
• Counting On
• Elementary Math

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Uploaded on Jul 10, 2024 | 0 Views

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1. Addition & Subtraction Add by counting on Number bonds to 20 Block 1 Week 1

2. Lesson 1 Step: Add by counting on (1)

3. 8 First there were _____ apples. Then _____ more were added. 6 Now there are _____ apples. 14

4. 9 First there were _____ sweets. Then _____ more were added. 3 12 Now there are _____ sweets.

5. 10 First there were _____ doughnuts. Then _____ more were added. 5 15 Now there are _____ doughnuts.

6. Reasoning I start with 9 sweets. Then I get 8 more. I now have more than 18 sweets. True or false? False. 9 + 8 = 17 (which is less than 18).

7. How many apples should be in the Then box? 8 3 11 What calculation shows this: ______ + ______ = ______