Two secret numbers can be found from just two clues. This 3rd grade two numbers from sum and difference worksheet has three puzzles, numbered 1 to 3. Each puzzle gives the sum of two numbers, a and b, and their difference. For example, in puzzle 1, the difference is 5 and the sum is 27. Your child finds both numbers. Each puzzle leaves a large grid space for working. A small chicken hangs from a string on the right. Page two solves each puzzle with two equations, so it reads like a worked example for an older child.