;; The first three lines of this file were inserted by DrRacket. They record metadata ;; about the language level of this file in a form that our tools can easily process. #reader(lib "htdp-beginner-reader.ss" "lang")((modname arithmetic) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f () #f))) ; remaining cash (- 100 (+ 25 20)) ; = (- 100 45) ; = 55 ; favorite ice cream flavor (- (* 5 4) 1) ; = (- 20 1) ; = 19