Find the Number Part 2
divisibility · explaining patterns for numbers divisible by 2, 3, and 5
Explain how to identify and generate numbers divisible by 2, 3, and 5.
Find the Number Part 2 is a Grade 4 divisibility discussion that moves beyond finding examples to explaining the patterns behind them. Students consider questions such as why a number fails the tests for 2, 3, and 5, what the smallest common example is, and how to generate more numbers that satisfy all three rules. The focus is on reasoning about divisibility rather than just checking answers.
Use it as a whole-class follow-up to Part 1 or after any divisibility investigation. Students can compare shortcuts, test conjectures, and explain the patterns they see in multiples that meet all three conditions. Create a free Find a Math Game account to generate lesson support for Find the Number Part 2. No credit card, 3 lesson generations for life.
- Grades:
- 4
- Classroom use:
- whole class
Standards alignment
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