“How many more?” is a question about a difference, and rounding makes it quick. This 3rd grade rounding to estimate differences worksheet has three word problems. In the first, Mercy and two sisters pick apples in an orchard. In the second, Jerry gives away pennies from his bank, while in the third, a furniture store sells plastic chairs and tables. Each problem tells your child where to round: to the nearest hundred, thousand or ten, so your child rounds the numbers first and then subtracts. Two girls stand by a pile of red fruit, and a boy sits near a sofa. Page two shows every step in pink.