In this short math video we will answer a standardized math test question where we are asked to estimate a sum by rounding. We will review the rules for rounding to a whole number. If the value to the right of the decimal point is 5 or...

Check for reasonableness of answers using rounding.

Mr. Addit explains rounding and estimating and teaches how to use estimation to add, subtract, and multiply. He models how to estimate products in multiplication math problems.

In this video, the teacher explains how to use rounding in real-world situations. Using examples such as estimating the number of students in a class, days until a birthday, fish in an aquarium, and pencils in a box, the teacher...

This video explains how to use rounding in real world situations. It provides examples of rounding numbers to the nearest hundreds, thousands, and tens of thousands, and demonstrates how rounding can make numbers easier to communicate....

In this lesson, students learn how to assess the reasonableness of multiplication problem answers using rounding. They are taught to round each factor to the leftmost digit and then multiply to check if the answer is close to their...

In this video, students learn how to assess the reasonableness of sums by using rounding. They are taught to round each number to the nearest place value and then add them together. By comparing the rounded sum with the actual sum,...

This video covers how to get a quick but rough answer by estimating. This involves rounding the figures you're given to make them easier to work with.



KS3 - All on y
our course
GCSE Foundation - All
on your...

In this video, students learn how to use smart rounding to estimate the addition and subtraction of decimals without performing the actual calculation. They learn how to round numbers to familiar or easy-to-work-with values and provide...

Sally and her friends want to buy 8 cheeseburger meals. They have $80, and each meal costs $9. Do they have enough money to pay for the meals? And if there is any money left over, how many milkshakes can they get, if each costs $2?

Recognize estimation and estimate sums using rounding.

Pupil outcome: I can round numbers to three decimal places. Key learning points: - Numbers with any number of decimal places can be represented on a number line. - Rounding is useful to estimate numbers to a degree of accuracy. - Numbers...

Pupil outcome: I can use my knowledge of estimation and rounding to solve problems. Key learning points: - It may be helpful to estimate an answer to check the magnitude is correct. - It can be useful to use rounding to significant...

In this video, students are taught to round the lead digit to the nearest hundred and then add the rounded numbers to get an estimated sum. By comparing this estimate with the actual sum, students can determine if their answer is...

In this video, the teacher explains how rounding can help solve word problems. They demonstrate how to round numbers on a number line and use estimation to find the answer to a multistep word problem.

In this video, the teacher explains how to estimate unit rates using verbal descriptions and equations. They provide an example of estimating the number of students per teacher in a school, demonstrating the process of rounding and...

In this lesson, students learn how to estimate solutions to multistep story problems by rounding. They are taught the concept of rounding and how to use benchmark numbers to determine whether a number should be rounded up or down.

In this video, students will learn how to estimate the answer to a word problem and check the reasonableness of their answer. The video covers different estimation strategies such as rounding, clustering, using friendly numbers, and...

Third class had a small fund raiser. The table below shows the money raised on each day last week. About how much money did they raise last week?

This video lecture explains the concept of decimal places and how to round numbers to a specific number of decimal places. The speaker uses examples to demonstrate how to count decimal places, identify decision digits, and apply rounding...

In this video, students learn how to estimate division by setting up an equation. The teacher explains the concept of multiplication and division being inverse operations and demonstrates how to use the multiplicative inverse to find the...

MacDonald wants to buy grain to feed his 4 horses. He went to the shop where they sell grain in bags of 6 pounds each. A horse needs at least 8 pounds of grain. He wasn’t sure how many bags he should buy….but he estimated that he will...

MacDonald wants to buy grain to feed his 4 horses. He went to the shop where they sell grain in bags of 6 pounds each. A horse needs at least 8 pounds of grain. He wasn’t sure how many bags he should buy….but he estimated that he will...

In this video lesson, students will learn how to estimate fractions to the nearest half by placing them on a number line. By understanding the concept of estimating and identifying the closest round value, students can quickly compute...