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.

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...

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?

In this video, the teacher explains how to use estimation to check if an answer is reasonable. They demonstrate how to round numbers and use compatible numbers to make estimations in different math problems.

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...

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?

In this video, the teacher guides students through the process of estimating and solving word problems involving fractions. They explain the concept of benchmark fractions and demonstrate how to use mental estimation to arrive at...

In this video, the teacher explains the concept of estimation and how to estimate the length of an object by comparing it to other objects. The teacher provides examples using body parts as reference points for estimation, and also...

Can you multiply 35 by 115 in your head? Learn this neat math trick of how to multiply two numbers that end in the digit 5. You can use it to estimate many other problems. The video also contains a proof of why the method works. Learn...

By creating a mental picture of a ruler and comparing it to the object, one can make a reasonable estimate. This skill helps in achieving measurements that are pretty close to the desired length.

Sara's family of 4 people want to go to the safari. Each ticket costs 21 dollars, what is a good estimate for the least amount of money they should bring with them to be able to pay for the tickets?

This video shows how fractions can be different in size, and how to compare those sizes. We look at fractions with the same denominator such as 1/3 and 2/3, and fractions with the same numerator, such as 1/2 and 1/4 . Then we compare the...

Anorexia and Eating Disorders | Health | Biology | FuseSchool In this video we are going to cover eating disorders, and in particular, anorexia. You may not be aware of this, but four out of 10 people have either personally experienced...

Alice and Bob start at opposite corners of a 5x5 grid. Alice moves up/right randomly and Bob moves down/left randomly. What is the chance they meet? What happens for an nxn grid? As n goes to infinity, the answer is interesting and...

What is the average distance between two randomly chosen points in a square with a side length 1? The video presents how to estimate the answer and also derives the exact answer using integrals. Per suggestions in the comments, I have...

Happy Pi Day! At 3/14/15 at 9:26 the time will be accurate to pi for 7 decimal places. What's your favorite fact about pi? Links to proofs and more below in the description. 1. The definition 00:10 Related: the area of circle intuitive...