What's my rule?
Suppose 3 goes in and 7 comes out; 8 goes in and 12 comes out; 2 goes in and 6 comes out. If 4 goes in, what comes out? This clever book challenges students to find the rule or algebraic function used to change one number to another. Most rules use addition, subtraction, and multiplication; a few use exponentiation. 59 illustrated worksheets, strategies, teaching ideas, and answers.
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