Curated OER
Estimate the Difference
In this estimation learning exercise, students estimate the difference by rounding each two-digit number to the nearest ten. Students complete ten estimation problems.
Curated OER
Estimate Sums and Differences
In this estimating sums and differences practice learning exercise, students sharpen their problem solving skills as they solve 6 story problems.
Curated OER
Estimating Differences (Online Interactive)
In this estimating worksheet, students solve 20 problems in which two or three digit numbers are subtracted after rounding. Students round each number and then give an estimated answer. This is an online interactive worksheet.
Curated OER
Estimate Sums and Differences
For this word problem worksheet, 4th graders answer 6 word problems by writing mathematical sentences that show each answer. They work with distances and time.