Curated OER
How to Round Numbers
Students exercise rounding numbers to the nearest tens, hundreds, and thousands. In this rounding numbers lesson, students participate in a rounding numbers activity, covering the concept of rounding in both addition and subtraction.
Birdville Independent School District
Friendly Numbers
There are a number of different strategies young mathematicians can use when adding two-digit numbers. This lesson plan focuses on making addition easier by rounding the addends to friendly numbers, with the resulting sum being adjusted...
Curated OER
Rounding Numbers
In this rounding numbers worksheet, students, with a partner, problem solve and calculate the answers to eighteen mathematical exercises.
Curated OER
Rounding to the nearest ten
Third graders use a hundreds chart and number line to round to the nearest ten. In this rounding numbers to ten instructional activity, 3rd graders navigate an online activity to round numbers. Students complete a worksheet and share...
Curated OER
Rounding to the Nearest Hundredth
For this rounding worksheet, students round numbers to their nearest hundredth. This one-page worksheet contains 20 problems. Answers are provided on the same page.
Curated OER
Rounding Numbers
Fourth graders complete math problems where they round numbers to the nearest ten, hundred, or thousand. In this rounding lesson plan, 4th graders explain how to round the problems they solve.
EngageNY
Estimating Quantities
Apply the concept of magnitude to estimate values and compare numbers. The ninth lesson plan of the 15-part series asks learners to write numbers to their next greatest power of 10 and then make comparisons. Scholars begin to understand...
Curated OER
Round Up or Round Off?
In this round up or round off worksheet, 8th graders write the correct number of significant figures. They round numbers written in scientific notation and standard notation as indicated. This two-page worksheet contains 28 problems.
Curated OER
Estimating with Rational Numbers
Learners explore the concept of rounding. In this rounding lesson, students round fractions and mixed numbers. Learners estimate the sums, differences, products, and quotients of rounded fractions and mixed numbers.
Curated OER
Rounding Whole Numbers; Estimating Sums And Differences
In this rounding whole numbers and estimating sums and differences worksheet, students problem solve and calculate the answers to forty two mathematical equations.
Curated OER
Estimating With Decimals
How can we estimate the answers when working with decimals? That's what the question is as the class reviews two-digit decimal addition. Have them estimate by rounding to a whole number either before or after they have completed their...
Curated OER
Rounding Decimals
Fourth graders explore rounding a price given in dollar and cents to the nearest dollar. In this math lesson, 4th graders discover how to round to the nearest dollar. Additionally, students practice rounding money for objects that they...
Mathematics Assessment Project
Estimating Length Using Scientific Notation
Would you rather have a million dollars or 1 x 10^6 dollars? To find the answer to this question, class members first complete an assessment task converting numbers between decimal notation and scientific notation. They then take part in...
Curated OER
Estimating Measurement
First graders estimate length and height of items. They read the story of Jack and the Beanstalk and discuss estimation of size. Students predict the length and height of figures. They use lines and numbers on the centimeter rod and tape...
EngageNY
Estimating Digits in a Quotient
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...
University of Waterloo
Rounding and Estimating 1: Introduction
Pupils practice mental math skills in math drills. They play the online interactive game "Rounding Off" to practice rounding off different numbers. Afterward, they complete a paper based follow up exercise for reinforcement.
Curated OER
BIG Pumpkins!
How big is the biggest pumpkin you've ever seen? Did it weigh over a ton—literally? Young learners view pictures of some record-breaking pumpkins, including some that weighed over 1,300 pounds, before answering five word problems about...
Curated OER
Whole Number Rounding
In this whole number rounding worksheet, students practice using a time line to assist them in whole number rounding whole numbers.
Curated OER
The Number Line
Represent, order, and compare rational numbers in order to practice placing them on a number line. Your class will use appropriate operations, methods, and tools to compute with real numbers. Then they must explain completely and clearly...
Curated OER
Rounding
In this rounding numbers worksheet, students review how to round numbers and then practice by rounding the first set of numbers to the nearest ten using the number line. Students then round the second set of numbers to the nearest ten.
Curated OER
Base-Ten Rounding
Fifth graders explore the base-ten rounding method. Using base-ten blocks, 5th graders build two-, three-, and four-digit numbers. After discussion, they round numbers to the nearest 10. Using the computer, students participate in a...
Curated OER
Rounding And Estimating
Students investigate various types of problems using whole numbers and decimals. They use a discussion format while working example problems to help create a baseline for further independent practice. The lesson also includes praise for...
Curated OER
The Meaning of Whole Numbers
In this whole numbers worksheet, pupils fill in different charts asking about the place value of various whole numbers. Students complete 8 problems.
Curated OER
Estimation: Compatible Numbers
In this estimation worksheet, students read real word problems and mentally estimate answers. Individually, they complete eight multiple choice problems using compatible numbers or rounding to determine their answers. Students evaluate...