Exercise: Evaluating Circles of Evaluation

Directions: For each Circle of Evaluation on the left, evaluate the Circle and write down the ANSWER (a number) on the right:

(+ 4 5)
(* 7 6)
(- (* 2 3) (+ 1 0))
(- (+ 5 8) 12)
(* -2 -6)
(+ (* 5 -2) 12)
(- -10 (/ 60 5))

Bootstrap:Algebra by Emmanuel Schanzer, Emma Youndtsmith, Kathi Fisler, and Shriram Krishnamurthi was developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, and 1738598), and is licensed under a Creative Commons 4.0 Unported License. Based on a work at www.BootstrapWorld.org. Permissions beyond the scope of this license may be available by contacting schanzer@BootstrapWorld.org.