Scholastic
Study Jams! Estimate Whole Numbers
Expand on prior knowledge of place value to teach your class how to round whole numbers. This essential skill is explained with the help of a number line before introducing the explicit rules for rounding numbers up and down. Work...
Scholastic
Study Jams! Estimate Whole Numbers
Watch animated slides as RJ explains how to round numbers to the nearest ten and thousand. Viewers then get a chance to try it themselves.
Curated OER
Using a Round-O-Meter to Estimate
Explore the concept of rounding numbers to the nearest dollar or dime. Youngsters use a "round-o-meter" to determine which direction to round a number. They make round-o-meters out of a piece of paper, a piece of string, and a paper clip.
Curated OER
Study Buddies: Multiplying by Two-Digit Numbers
Learners solve a multiplication problem in which they must multiply two 2-digit numbers with the help of a "Coach". Pupils follow a step-by step process and notes are provided for the coach.
Curated OER
Estimating Solutions
Finding approximate solutions to word problems allows users to assess the reasonableness of their answers. In a well-paced lesson, the class rounds numbers to estimate the solutions. They explain their thinking and determine if the...
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
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...
Silver Burdett Ginn
Study Buddies: Multiplying Whole Numbers And Fractions
Budding math buddies work together to multiply fractions by whole numbers. All of the problems involve real-life applications, making this an extension of simply practicing the skills. Knowledge will be multiplied by completing this...
Curated OER
Who Wants to Win Millions: Estimation and Rounding
Rounding numbers can be fun using this game. Learners estimate and round numbers to the tens, hundreds, and thousands using this presentation. What a clever way to review this concept.
Curated OER
Rounding Whole Numbers; Estimating Sums And Differences
For this rounding whole numbers and estimating sums and differences worksheet, students problem solve and calculate the answers to forty two mathematical equations.
Curated OER
Rounding and Subtracting
Common Core is all about getting your learners to open their minds and think about the why and how. This problem has them thinking about unknown numbers and their relationship with one another when we round and subtract. They will have...
Curated OER
Estimating with Rational Numbers
Middle schoolers explore the concept of rounding. In this rounding lesson, students round fractions and mixed numbers. Middle schoolers estimate the sums, differences, products, and quotients of rounded fractions and mixed numbers.
Curated OER
Using Known Facts to Multiply and Divide Mentally
Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...
EngageNY
Dividing Multi-Digit Numbers Using the Algorithm
Scholars learn to divide multi-digit numbers using the standard algorithm in the 14th installment in a module of 21 parts. They get plenty of practice with the algorithm by completing a worksheet.
Curated OER
Estimating Solutions to Word Problems
Learners use estimation to determine the answers to word problems by rounding whole numbers. In this estimation lesson plan, pupils compare and contrast solutions using the best answer.
Curated OER
Recognizing Exact Numbers or Estimates
In this estimation worksheet, students read a word problem about the Lincoln Memorial and then answer 4 fill in the blank questions where they decide whether they need to use an exact number or an estimate to answer each question.
Curated OER
Estimate the Sum
In this estimating worksheet, students round numbers to the nearest ten and estimate sums in a total of 9 problems. Answers are included on page 2.
Curated OER
Study Buddies: Dividing by Two-Digit Numbers/One-Digit Quotients
In this math worksheet, students will work with a coach to solve a two-digit division problem. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Multiplying Mixed Numbers
In this multiplying mixed numbers worksheet, students with a partner problem solve and calculate the answers to ten word problems and mathematical equations.
Curated OER
Two-Digit Quotients
In this mathematics worksheet, 6th graders find the quotient for each problem. They estimate first and identifying which number they will use. Then, students divide the problem and multiply to check.
EngageNY
Sampling Variability
Work it out — find the average time clients spend at a gym. Pupils use a table of random digits to collect a sample of times fitness buffs are working out. The scholars use their random sample to calculate an estimate of the mean of the...
Curated OER
Estimating
In this estimating worksheet, students review how to estimate and round numbers. Students then estimate the three number addition problems by rounding the numbers to the nearest hundred. Students then find the exact answer. Students...
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
Problem Solving: Estimate or Exact?
In this number sense instructional activity, 5th graders solve 6 word problems and explain why the answer makes sense. They use either estimated numbers or exact numbers as they solve the problems.