Free, fun, and challenging. One page of diamond problems for integer operations. The second page gives examples how diamond problems,or the 'magic X' (the X inside the diamond), can be adapted to practice monomial operations differentiating the rules for exponents, combining like terms, distributive property, factoring GCF, factoring 1x^2 trinomials, and multiplying special product binomials. The factoring can be done as discovery before formally teaching it. Use as warm-ups or partner work. P.S. I have changed the positions from the traditional vertical to horizontal to better align with factoring trinomials like x^2 - 2x - 15.
For more fun check out my 12 page packet containing 3 student worksheets with 49 numerical diamonds, 25 factoring diamonds, 21 algebraic diamonds, 2 teacher demonstration/whole class worksheets, 5 answer keys, and 2 worksheet templates. These worksheets can be cut in half, or even thirds, to use as warmups, review, or as a discovery intro for exponent rules for division and for factoring GCF and 1x^2 trinomials. It sells for only $3.