These worksheets help students develop estimation skills by combining rounding and addition concepts. Students round numbers to the nearest ten or hundred before finding sums, building essential mental math abilities. Each worksheet contains 10 problems that strengthen computational fluency and number sense.
These worksheets combine rounding and addition by asking students to round numbers to the nearest ten or hundred before adding. This builds mental math and estimation skills that students use throughout elementary math and beyond. Students practice deciding which place value to round to and then finding an estimated sum.
