One Atta Time Flash Cards Distance Learning Create New Sheet Customize Problems Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Diamond Problems Practice finding two numbers when you know their product and their sum.Use multiplication and addition together to solve number puzzles.Work with factor pairs to match a target product.Solve for missing numbers by checking that both the product and sum rules fit.
