Divisibility by 7
divisibility · testing 3-digit numbers for divisibility by 7
Figure out whether partner-created 3-digit numbers are divisible by 7.
Divisibility by 7 is a Grade 4 partner challenge focused on testing three-digit numbers with a specific divisibility rule. One partner creates a number and the other applies the 3X + L method to decide whether it is divisible by 7, then the roles switch. Because students generate the examples themselves, the practice includes both number creation and rule application.
Use it after explicitly teaching the divisibility-by-7 procedure and you want repeated partner practice. Have students record numbers that pass the test and verify them with division afterward. Generate teacher-ready lesson support for Divisibility by 7 with a free Find a Math Game account. No credit card; 3 lesson generations for life.
- Grades:
- 4
- Classroom use:
- partner work
Standards alignment
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