Finding One More Than To find one more than a given number to 20. Complete these sentences. 1. 2. 6 7 8 One more than is . One more than is . 3. 4. One more than is . One more than is . 5. 6. 12 13 14 One more than is . One more than is . Maths | Number and Place Value | Identify One More and One Less | Lesson 1 of 3: Finding One More Than Numbers to 20