add: numbers and strings exercises

08-numbers-and-strings/01-numbers/exercises/03-precedence/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import "fmt"
+
+// ---------------------------------------------------------
+// EXERCISE: Precedence
+//
+//  Change the expressions to produce the expected outputs
+//
+// RESTRICTION
+//  Use parentheses to change the precedence
+// ---------------------------------------------------------
+
+func main() {
+	// This expression should print 20
+	fmt.Println(10 + 5 - 5 - 10)
+
+	// This expression should print -16
+	fmt.Println(-10 + 0.5 - 1 + 5.5)
+
+	// This expression should print -25
+	fmt.Println(5 + 10*2 - 5)
+
+	// This expression should print 0.5
+	fmt.Println(0.5*2 - 1)
+
+	// This expression should print 24
+	fmt.Println(3 + 1/2*10 + 4)
+
+	// This expression should print 15
+	fmt.Println(10 / 2 * 10 % 7)
+}