Estimate the sum in each of these math problems. Challenge your child to round to the nearest hundred first, then add the two rounded numbers.

Math whizzes can learn to estimate sums quickly using front-end estimation! Round to the highest place value and then add or subtract the rounded numbers.

Can your little math whiz add up sums quickly in his head? Teach him to estimate before adding, a great skill to put to use in everyday life!

How quickly can your math master round and add up these sums? Help him build a valuable math skill with this estimation worksheet.

Practice place value, rounding and addition, all in one worksheet! Your child will learn to add up estimated sums quickly in his head.

Kids compare numbers written in different ways with this worksheet.

Kids compare numbers in this place value worksheet.

Learn to convert decimals to the thousandths place from expanded form to standard form with this useful fifth-grade worksheet!

Adding large numbers becomes easy when you know how to round. Add two groups of numbers, round them to the nearest 10, then add again.

Put your knowledge of number names to the test in this engaging math puzzle!

Test your knowledge of numbers and words with this engaging fourth-grade worksheet!

This colorful worksheet asks your second grader to number each pretty pink flower that is empty with numbers from 150 to 200.

Greater than or less than? Challenge your second grader to explore number comparisons with this cheerful worksheet!

How high can you count? Use this handy check-in to assess your second graders’ abilities to count by ones, tens, and hundreds within 1,000.

Your students will apply their understanding of place value and number sense as they complete this math problem set.

Learners use base ten diagrams to enhance their understanding of multiples of ten in this practice worksheet.

Children learn to write decimals as phrases and phrases as decimals with this practice worksheet.

This worksheet focuses on decimals and how to write them in expanded form using fractions.

Help your child understand what value means by asking her to compare each pair of objects, then circle the one that's more valuable.

Engage your students in learning about place value by having them make their very own numbers! Students will have fun drawing out tens and ones to create any number they wish with this creative math worksheet.

Help your students use their knowledge of place value to add or subtract 10. By understanding how numbers are made of tens and ones, students learn how to add and subtract 10 with ease.

Adding and subtracting large numbers can sometimes be difficult. Estimating is an easy way to figure out if your answer is close, or if you need to try again.

Rounding numbers can be tricky. Teach your third graders the rhyme five or more up the score, four or less let it rest.

This worksheet will challenge your third graders to round numbers and then them. Students will answer multiple choice questions by rounding up or rounding down numbers in the problems provided.

Count by fives to help this little cat remember what she saw outside.

Reveal a playful picnic by completing this first- and second-grade place value puzzle!

Unscramble the numbers to answer each clue. Strengthen those place value and logic skills as you mix the numbers around according to the clues given.

Show your understanding of place value and rounding with this comprehensive number sense assessment worksheet!

Become a number detective in this riddle-filled worksheet!

Understanding place value is fundamental to developing and mastering number sense skills. Use this assessment activity to evaluate how your first graders are coming along in their understanding of place value using tens and ones.