CBEST MATH #12 ~ Estimating 1 ~ GOHmath.com

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GOHmath specializes in hands-on teacher workshops and one-to-one tutoring designed to helping teachers, students, and education professionals pass teacher certification exams in Mathematics, Sciences, English, History, ELL and Reading Development. We specialize in 1-TO-1 Tutoring & Teacher Test Preparation on the MTEL, FTCE, CBEST, CSET, RICA, NYSTCE, PRAXIS and following national and state teacher certification exams:
MTEL - General Curriculum MATH (03)
MTEL - General Curriculum MULTI-SUBJECT (03)
MTEL - Elementary Math MTEL (53)
MTEL - Middle School Mathematics (47)
MTEL - Middle School Math & Science (51)
MTEL - High School Mathematics (09)
MTEL - General Science (10)
MTEL - General History (06)
MTEL - Foundations of Reading (90)
MTEL - Literacy & Communication (01)
MTEL - English (07)
FTCE - General Knowledge Test (GKT MATH)
FTCE - Elementary Education K-6 Test (MATH)
FTCE - Middle Grades Mathematics 5-9
FTCE - Mathematics 6-12 Test
PRAXIS - Fundamental Subjects: Content Knowledge (5511)
PRAXIS I - Mathematics Test (5730 & 0730)
PRAXIS - Middle School Mathematics (0069)
NYSTCE- Multi-Subject SCT (02)
NYSTCE- Mathematics CST (04)
NYSTCE- Mathematics CST (61)
CBEST - Mathematics Section
CSET - History & English Subtest 1
CSET - Mathematics & Science Subtest 2
CSET - Fine Arts, Physical Education, & Development Subtest 3

Опубликовано:

3 дек 2014

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Комментарии : 375

@Kbell33 3 месяца назад

In the past, I think I would have subtracted the original numbers first and found the closest answer. This is a straightforward way to estimate and much faster, which I appreciate!

@juliahopkins5039 Год назад

I love how you explained that when you see "more" it means you need to find the difference through subtraction. This was so helpful.

@niadivris4645 6 лет назад

I have never heard of front-end estimation before. I paused the video and tried solving before watching your technique, and I subtracted which took much longer! The front end estimation was super helpful!

@briannaaudette6723 6 лет назад

This video is the first time that I have been exposed to the strategy of front end estimation and it truly simplifies the process immensly!

@kayleighsilva7755 2 года назад

I love how you rounded before instead of subtracting. It saved so much time!

@michnoriegaaa7901 15 дней назад

Rounding before subtracting is a time saver on tests like the MTEL. This problem is a good reminder to always show your work because I did it "in my head" and would've gotten 10,000 as my answer just because I didn't show it out!

@ashleyday8791 2 года назад

When going through column 1's videos for place value, I felt super overwhelmed. This question with the rationale gave me a little confidence boost with the help of this video! Thank you!

@KathyDavis-og6yb Год назад

These little videos are building my confidence by showing me I remember my math facts from previous schooling - thank you so much!!

@shannondaniels8508 6 лет назад

Front-end estimation is genius! It makes the problem so much easier and less time-consuming.

@courtneybeauregard1225 Год назад

I love the strategy of rounding to easier numbers! It makes the problem so much easier to visualize and solve!

@carolinedawson497 3 года назад

I like that you briefly reviewed rounding. It's been awhile since I've done a math problem like this and it was nice to have the refresher on rounding.

@wendyconnell2594 4 года назад

Thanks for making your videos upbeat and enjoyable to watch. Your positive attitude helps me have more positivity toward taking this test! :)

@kclough09 6 лет назад

I don't think I've ever heard of "front end" estimation - what a great strategy! Made the problem super easy!

@abbeybernier9247 2 года назад

Loved that you estimated/ rounded first! I had never seen that before and it was a lot easier to solve the equation after it was rounded and simplified!

@michellehand1595 4 года назад

I like how you gave a reminder on how to round up or down. I have never heard of front end estimation before but it seems very easy and is something I need to remember for the test.

@lizmiller3846 6 лет назад

The instructor explained how he did the problem very well. I'm getting it!

@caseymccrobie8627 4 года назад

I love how easy it was to round down focusing on the first number. It made it so much easier to subtract the two numbers.

@jaredgreiff4674 6 лет назад

I had never heard of front end estimation, but it makes a lot of sense and makes doing this problem much easier!

@kaitlyncolacchio9758 5 лет назад

I would have known it was subtraction but loved the explanation that it was "front end estimation." It's crazy what you can forget sometimes! Great refresher.

@jenniferbryan127 6 лет назад

I love how the estimation makes it so easy to solve for. I've never heard front end estimation before, so it is helpful to know this word.

@eileendurgin6549 Год назад

I like the way you were able to simplify the numbers to make them not look so daunting. It made the question a lot easier.

@atianacaraballo 3 года назад

I liked that you rounded the numbers in the problem prior to doing the subtraction. This allows for a simpler and cleaner subtraction problem rather than subtracting then trying to round the solution.

@erinsawicki7791 4 года назад

I wouldn't have thought to just look at the first number. I would have been trying to round with the last number, so this video really cleared that up.

@ashleighprewitt931 Год назад

when you see the word "more" in a word problem it most likely means subtraction. I liked how you reviewed the idea of rounding, it made the subtraction process so much easier.

@kelleyliebfried8134 6 лет назад

I had never heard of front end estimation before and to put it into layman's terms was really helpful to me. I was therefore able to calculate the estimation more quickly and saved time.

@michaelamonahan4598 3 года назад

I liked how by round either up or down and subtracting, you are then able to find the estimate. I also think it is beneficial to find those key words so that you can use the correct technique to solve the problem!

@abbydorlando4255 3 года назад

I like how you did a quick review of estimating/rounding before going into solving the problem!

@devonshepardson8514 2 года назад

I like how you broke down the word problem first and it was a good review of the front end estimation!

@mollyfair7971 2 года назад

This video was very helpful! This is a great strategy for solving for estimation problems that I will apply in the future!

@megantingley4872 3 года назад

This estimation is definitely something I am going to practice and look for in upcoming questions. Very helpful!

@user-wq7wp9ul2o 8 месяцев назад

I loved seeing finding that keyword "more." That's something I practice with my students!

@hssldmg728 6 лет назад

very helpful and a good way to get through the problem quickly! Thanks!

@katrinagustafson 4 года назад

I like how estimation saves so much time when solving the problem! I also never knew about the front end estimation

@jordanascott6755 5 лет назад

Using front end estimation for this problem, and talking about how doing so in this case rounds the rest of the number down was great for helping to solve.

@klane904 5 лет назад

I learned when you see “estimate” in a problem like this, make it easier for yourself and round the first number up or down depending on the number before it. Work smarter, not harder!

@taishagalipault7642 5 лет назад

Language cues were very helpful as well as rounding first. Thanks for refreshing my memory!

@AngelicaSilva-ql7gk 3 года назад

This problem was a breath of fresh air, easy to understand by estimating and place value.

@victoriawargo6239 6 лет назад

I liked how you mentioned all the concepts that go into this word problem and it's not just estimation.

@emilyfries3845 6 лет назад

After reviewing place values right before I was able with the front end method to get the correct answer. Very helpful refresher.

@carolynaliskevicz4179 4 года назад

Rounding first is such a great tool, thanks for reminding me!

@michaellaflaherty3804 5 лет назад

I learned what the term front- end estimation means from this video and also implemented my knowledge of keywords to find out what the question is asking, and how to go about solving it.

@MichelleDoucetTagliarino 4 года назад

Math like this used to be so easy for me as a kid. The older I get, I forget how to sift through all of the methods to do something. Thanks for the visuals

@emmaleebinette1120 2 года назад

I enjoyed how you went over estimating quickly. it was a great review for me!

@amygladson67 4 года назад

I loved the reminders of estimating. Looking at the number to the right of the first number to see if it is greater than or equal to 5 determines whether you round up or down.

@christinapreville631 6 лет назад

This video was very helpful. It reminded me about front end estimation and to always look at the first digit in each of the numbers.

@jordyncalnan9331 3 года назад

I used front-end estimation when I was in elementary school. This was much needed refresher.

@malloriebrown9525 6 лет назад

The use of front end estimation was very helpful. During a timed test this saves time and allows you to find the estimated answer.

@cassandrachartier2004 6 лет назад

A great refresher on proper rounding techniques!

@kaitlynmarchand7540 2 года назад

This video was helpful because it brought me back to estimating and how to estimate according to the certain numbers the problem gives you.

@kal783 4 года назад

Rounding both numbers made them much easier to work with. the reminders to look for keywords are very helpful

@ariw7267 3 года назад

I really like how you you used number sense word clues (how many more, estimate), and front end estimation to solve this problem. Thanks.

@kelseycrehan6861 5 лет назад

great refresher! I like how you pointed out important language to help solve- like how many more

@alexafoley6713 5 лет назад

I like the strategy of front end estimation. It makes solving the problem easier and can be used on multiple problems on the MTELs.

@marisaclougher6359 6 лет назад

Before watching how you solved it, I thought the answer was originally C, watching you work through it helped me realize what I missed. My numbers were not aligned properly, your visualization made me realize how important it is to take time to write it out neatly.

@jenniferroman3426 3 года назад

This was good practice! Using estimation to find the different between numbers is something that I haven't done in awhile!

@nicolesmith7087 4 года назад

I love how simple it is to round up or down in estimation problems.

@marisawaters2703 3 месяца назад

great review on front end estimation and eliminating zeros to get to the answer

@kellieanderson5586 6 месяцев назад

I like the way that you explained the concept of rounding. I am feeling more confident.

@nenaaa0317 6 лет назад

This was my first time hearing of front end estimation so that was a helpful term and concept to learn about.

@user-bv7vz2ze8i Год назад

Thank you for highlighting key vocabulary and reinforcing that. Thanks!

@helloitscaitlin1 4 года назад

I really liked how we rounded the numbers before finding the answer. It makes the problem solving more clear

@sammiecarson6134 6 лет назад

I didn't know that this problem could be broken down so much. I was glad to see I got the right answer and used a correct strategy.

@samanthaomalley6759 6 лет назад

I liked how he suggests to round the numbers to whole number and to subtract them from each other. It made finding the solution quicker.

@kaileysparks1973 5 лет назад

I think that this brush up on front end estimation was great! I just took both numbers and subtracted them to get to about 100,000. Front end estimation is way easier.

@sophiweinstein1757 4 года назад

The front end estimation strategy was new for me. Helpful to see it all drawn out.

@ashleyparon2065 5 лет назад

The most important part of this video for me was your explanation of the word, "How Many More". I will make an important note about this language meaning subtraction. Rounding I am comfortable with.

@raegendocca1629 6 лет назад

I would have just subtracted the Mills from the Spring library, but your explanation of front end estimation made it a lot easier and saved time.

@oliviaguyer497 5 лет назад

I liked the review on front-end estimation, it seems simple but it was great to go over it.

@juliacentofanti1866 5 лет назад

I used this strategy on a different practice problem and found that it was easier to solve than the method that i was using.

@akalogeris95 6 лет назад

crossing off the zeros was a great tip. Thank you!

@kaitlynrotchford8369 2 года назад

I like how he found the key words more and estimate to solve the problem. Looking out for these words will help me solve these questions faster.

@candacegagne1950 2 года назад

Found it helpful showing the important parts of the problem. It is helpful see the front end estimating in action.

@erinobrien882 3 года назад

I liked how this problem refreshed my memory on key vocabulary and the importance of place value.

@jennmorey1133 5 лет назад

I used front end estimation to initially find the answer prior to watching, great explanation!

@carasavi1183 3 года назад

I loved the strategy of pre-drawing out the subtraction problem without the numbers prior to creating the estimations.

@melissaargano5776 6 лет назад

Crossing out the zeros made it much easier to understand. It's easy to get caught up in that when solving.

@julierihn7434 4 года назад

Very helpful how you broke down this problem and named strategies we need to study.

@brianaobrien8735 4 года назад

I love estimating! I like to think of these kinds of problems as "clean problems" because solving it is pretty streamlined.

@jennaalfonso6101 2 года назад

Rounding up and down is a great strategy! I definitely need to do more practice problems on this type of concept though.

@kelleykiriakakos5430 5 лет назад

Reviewing front end estimation was helpful in recalling where to look to see if you round up or down and what happens to the other numbers to make it easier to subtract.

@nicolehardiman816 5 лет назад

This was a good review of the front end estimation strategy, thanks!

@lilychaffeedutra487 4 года назад

This one was an easy one for me. Thank you for the explanation!

@shwetaiyer4312 5 лет назад

Liked the way front end estimation was explained, makes it easier and quicker to solve the problem.

@crystalallred4506 3 года назад

Once I saw the example of rounding in the problem, it made answering this question quick and easy.

@baileychartier3027 2 года назад

This problem was explained in a clear and concise way that made it easier to understand.

@alliegallagher6023 6 лет назад

I think the idea of front end estimation is very helpful and makes for a more efficient way to solve this problem.

@samanthaallan69 3 года назад

I forgot the concept of rounding up or down based off the number to the right, so that was a very helpful reminder for estimating large numbers like this problem has.

@kristensordillo9404 5 лет назад

Great review of front end estimation and pulling out the key questions.

@kylie27921 3 года назад

Front end estimation was something I didn't know about and made the problem a lot easier to solve.

@JonasLover02302 5 лет назад

This video was a good reminder of math terms like front end estimation and difference.

@meaghanmccarthy4399 6 лет назад

The front end estimation made this problem much easier to solve. I had not heard of that before and thought it was a helpful term.

@alissademartino8621 6 лет назад

Front end estimation definitely makes this problem manageable. I find that language clues are so important in helping students solve word problems.

@melissanicastro397 5 лет назад

Front end estimation helps so much and also remembering that the phrase "how many more" means that there is subtraction involved.

@suzannesmith4812 3 года назад

This video helped me to review reading large numbers and recognize language clues.

@cassideykida9895 2 года назад

I found the video to be very beneficial as it reminded me of the tricks to estimation and the key-words to subtraction. Without the understanding of the key-statement, "how many more ..." I most likely would have gotten this question incorrect.

@sabrinacollins3634 6 лет назад

I like the idea of front end estimation. I've never heard of that before and it is quite useful.

@ashleyoconnor4745 5 лет назад

I liked rounding first! It made solving the problem a lot easier.

@meghanallen2394 6 лет назад

The strategy you used helped me understand this problem

@angelarossi5835 4 года назад

Front end estimation was clearly shown. I also like how again you targeted the words used in the problem to help us solve. "How many more?" would allow us to subtract.