Tri-Operations has lessons and activities for greatest common factor, least common multiples, factors, multiples, and integers' relationships. After cutting and laminating the triangles, first use them to find the GCF and LCM in several ways. Then use the divisibility assignment that enables students to make numbers that can be divided by several common factors.
Other activities or benefits include using them to add, multiply, divide, and subtract numbers. They may be formatted as fractions for comparison and inequality.
Please click PREVIEW to see that this bundle has several recording sheets for student to display how to get a repetition of differences, sums LCM and GCF to form a triangle. The rules are provided for individual review or competition.
Then check these class organization and learning tools:
Quick Check - Lines
Advance the Polygons in Space for Surface Area and Volume
Fixing Tools for Unlike Fractions
Real Numbers are Universal Stars
If you want a bundle of resources for number concepts, check
Understanding Expressions and Equations
Collection of Rational Numbers in Expression