Unit 7 Contents

23. Use a clean 100 Chart from the Student Activity Book to explore the following.
1. Skip count by 5s on the 100 Chart. Mark each multiple of 5 with a circle. Then, skip count by 10s and mark the multiples of 10 with an X.
2. Describe how you know a number is divisible by 5. In your description, include:
• Examples of numbers that are divisible by 5.
• Multiplication sentences and division sentences for those numbers.
• Descriptions of patterns you see on the 100 Chart.
3. Describe how you know a number is divisible by 10. In your description, include:
• Examples of numbers that are divisible by 10.
• Multiplication sentences and division sentences for those numbers.
• Descriptions of patterns you see on the 100 Chart.

Check-In: Question 24

24. Answer Questions A–F about the following numbers:

    345	980	1369	1197	3288
    9036	2273	1035	8665	2073

    1. Which numbers are divisible by 2? Tell how you decided.
    2. Which numbers are divisible by 3? Tell how you decided.
    3. Which numbers are divisible by 6? Tell how you decided.
    4. Which numbers are divisible by 9? Tell how you decided.
    5. Which numbers are divisible by 5? Tell how you decided.
    6. Which numbers are divisible by 10? Tell how you decided.