Illustrative Mathematics
Shrinking
Is Aunt Nancy shrinking? Find out by calculating with the average height women lose each year. The activity practices multiplying and dividing with decimals and rounding the final answer.
Illustrative Mathematics
Sharing Prize Money
When three classrooms are to split up prize money, your mathematicians must find the percentage that each class deserves and calculate the total amount. There is an option to use a calculator and practice rounding.
Illustrative Mathematics
Rounding to 50 or 500
In a six-problem learning activity, children are guided to solve word problems that involve rounding to the nearest ten and nearest hundred. A commentary and answer key provide different approaches that learners may take in solving the...
Curated OER
Rounding Decimals
Fourth graders engage in a lesson that is about the concept of rounding decimals. They review place value and focus it upon the practice of rounding. Students use 10 base decimal grids or models to help make connections with the skill.
Curated OER
Rounding Numbers
Rounding numbers is an important mathematical skill. Here is a activity that gives learners ample practice. They must round sets of numbers to the nearest 10, 100, and 1,000. There are 60 numbers that must be rounded. This would be an...
Curated OER
Rounding Whole Numbers
Can your fourth graders round to the nearest 10? What about the nearest 100, or 10,000? A thorough resource helps them practice rounding numbers of varying size. Four sets of problems prompt students to round to specified place values,...
Curated OER
Rounding to the Nearest Whole Number
Bring money and measurement together by practicing rounding decimals to the nearest whole number. Three sections prompt fourth graders to round to the nearest dollar, the nearest meter, and the nearest whole unit. Use this activity as an...
Curated OER
Rounding Decimals, from Hundredths Place to Whole Numbers
An efficient and straightforward decimals learning exercise! Young learners round amounts of money and measurements to the nearest dollar or meter. Each section contains 20 problems, making it easy to divide up this asignment into...
Curated OER
Rounding Decimals
Challenge your fifth graders with a worksheet on rounding decimals. Each section provides three columns of decimals and a space for pupils to round them to the nearest tenth. This makes a nice homework assignment, or a timed in-class test.
Curated OER
Rounding Mixed Numbers
Is your class having trouble with mixed numbers and rounding to the nearest whole number? Use this instructional activity in your fractions unit to help struggling math students with this tricky skill. An example demonstrates how to...
DK Publishing
Rounding to the Nearest 10
Practice rounding with your third graders using a helpful, straightforward worksheet. After a lesson about rounding to the nearest 10, have your young mathematicians locate ten numbers on number lines, and fill in the correct answer....
Curated OER
Rounding Money
Simplify money math with these 27 rounding practice problems, split into three sections. For the first part, scholars round nine money amounts to the nearest dollar. The next second has them round to the nearest 10 dollars, and finally...
Curated OER
Estimating Sums of Money
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Curated OER
Estimating Quotients
Put down those calculators! Show scholars they can solve division problems mentally using rounding strategies. They divide four-digit dividends by one-digit divisors, competing 26 problems in all. The first eight have some scaffolding...
Curated OER
Estimating Products
Multiplication on the fly becomes easy with the magic of estimating! Scholars round numbers up to four digits to complete multiplication problems without a calculator. They write in the new factors and the approximate product for the...
Curated OER
Singing a round
Kids use their hands, bodies, and voices to explore the musical concept of a round. They say vegetable words while stomping and clapping out a rhythm in unison and then in a round. They then sing a round while maintaining a steady beat....
DK Publishing
Estimating
Through estimating, scholars are able to make these word problems simpler as they multiply to find approximate answers. Using an example as guidance, they solve five scenarios, each of which has space for learners to show their work. The...
Curated OER
Estimating Differences of Money
When it comes to money math, show scholars that estimation is their best friend. They round money values to the closest dollar, 10 dollar, and 100 dollar increments, solving 19 addition and subtraction problems with approximate answers....
Curated OER
Our Solar System - Comparing Planetary Travel Distances
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
Curated OER
Rounding Quiz
Pupils round 40 numbers to the place value indicated in parenthesis. Each number is a decimal and everyone must round to the whole number, tenths, hundredths, and thousandths.
Curated OER
Practice Rounding Decimals
Elementary and middle schoolers round numbers with decimals to the place value that is underlined. They find the length to the nearest centimeter and tenth of a centimeter of a variety of objects.
Curated OER
Rounding up or Rounding down
Teach the class how to estimate by rounding to the nearest 10. They review the rules for rounding, try rounding a few numbers using a number line, then round on their own. This is a good introduction that explains how to round and why we...
Math Mammoth
Word Problems
Upper grade and middle school learners problem solve and calculate the answers to twenty various word problems involving multiplication, and a bar graph.
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.