PDF Adding with number lines - K5 Learning Solve the following by drawing hops on the number line. Example: 6 + 1 = 7 1. 5 + 12 = 2. 10 + 4 = 3. 3+ 8 = 4. 7 + 10 = Adding with number lines Grade 1 Addition Worksheet Reading & Math for K-5 © Answers 1. 5 + 12 = 17 2. 10 + 4 = 14 3. 3 + 8 = 11 4. 17 + 3 = 20