Curated OER
Rounding Whole Numbers
Can your fourth graders round to the nearest 10? What about the nearest 100, or 10,000? A thorough resource helps them practice rounding numbers of varying size. Four sets of problems prompt learners to round to specified place values,...
Khan Academy
Khan Academy: Approximating With Powers of 10
Practice comparing two real-world quantities by approximating them using rounding and powers of 10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.