Divisibility
Divisibility asks whether a quantity can be partitioned into equal groups with no remainder; digit tests are consequences of place-value structure rather than magic rules.
What you'll learn
- Interpret divisibility as equal grouping with remainder zero.
- Use divisor, factor, and multiple with distinct meanings.
- Explain divisibility tests for 2, 5, 10, and 9 from place value.
- Use a digit test only under its justified condition and retain remainder information.
Before you start
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