Help 3rd graders master rounding with this rounding to the nearest ten worksheet, featuring guided number lines and quick practice. Answer key included—an easy, no-prep way to build number sense and estimation skills.

Third graders round three-digit numbers to the nearest hundred to estimate each sum on this Adding and Estimation Worksheet, then add to find the actual total. Includes an answer key—great for quick, no-prep math practice.

This add/subtract estimation worksheet helps 3rd graders round to the nearest ten and hundred to estimate sums and differences. Includes an answer key for quick, no-prep rounding and estimation practice.

This round to the nearest hundred word problems worksheet gives 3rd Grade students five rounding items, three add-and-round word problems, and a written explanation task. An answer key is included so checking work is quick.

In this Round to the Nearest Hundred Worksheet, students round multi-digit numbers to the nearest hundred.

Using Estimation Multiple Choice Worksheet, students estimate answers when solving word problems of all operations, then select multiple choice answer.

In this Estimating and Measuring with Tools Worksheet, students estimate and then measure lengths using units of inches.

UsingGram Kilogram Worksheet, studentscircle the unit that would most likely be used to measure each object.

This rounding to hundreds worksheet gives 3rd graders nine rounding problems, a number line activity, and word problems to explain. An answer key is included, so estimation practice is ready in one print.

In this Estimating Measurement in Feet Worksheet, students complete the web below with objects that could be measured with the unit feet.

In this Estimating Measurement Worksheet, students choose objects in your classroom to measure to estimate the length of the objects.

Using Time Estimation Worksheet, students estimate the amount of time that different activities would take to complete.

In this Round to the Nearest Ten Worksheet, students round multi-digit numbers to the nearest ten.

In this Rounding to Tens Worksheet, students round multi-digit numbers to the nearest ten.

In this Estimating Measurement in Meters Worksheet, students complete the web below with objects that could be measured with the unit meters.

In this Estimating Measurement in Inches Worksheet, students complete the web below with objects that could be measured with the unit inches.

In this Estimating Measurement in Centimeters Worksheet, students complete the web below with objects that could be measured with the unit named in the center.

In this Round to the Nearest Ten Word Problems Worksheet, students students solve the addition word problem, then round to the nearest ten.

Using this What's the Weight? Worksheet, students estimate the weight of objects in the classroom and then weigh to the find the actual weights.