What does estimate using compatible numbers mean?
Sep 07, †∑ Compatible numbers mean rounded numbers that make it easy to do the problem in your head. Like if it was 57 ? 9 you could round up to 60 ? 10 which is easy. So round - . Virtual Nerd's patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. In this non-linear system, users are free to take whatever path through the material best serves their needs. These unique features make Virtual Nerd a viable alternative to private tutoring.
Analysis: The phrase about how many indicates hwat we need to estimate. To solve this problem, we will estimate the quotient of these decimals. There are many strategies that we could eetimate. We will use compatible numbers for this problem. The number 7. In the example above, we changed the divisor 7. The numbers 8 and are compatible since they make it easy to do mental arithmetic.
Let's look at some ahat examples of estimating decimal quotients. In Example 2, each tto was changed to a compatible number. The numbers 4, and 6 are compatible since they make it easy to do mental arithmetic. When estimating decimal quotients, it is easiest to use compatible numbers. This is the strategy we will use throughout this lesson. Example 6: The Lachance family drove on a 1, Estimate the average number of km driven per day.
Answer: The average number of km driven per day is about Explain your answer. Example 9: Taylor divided 8, by 9. Use estimation to numbwrs whether his answer is reasonable or unreasonable. Example Nina divided 3, Use estimation comptaible determine whether her answer is reasonable or unreasonable. Summary: In this lesson, we learned how to estimate decimal quotients using compatible numbers.
We also determined if an numberw quotient was an cmopatible or an underestimate by comparing it with the actual answer. Lastly, we used estimation to determine if an answer was reasonable or unreasonable. Directions: Read each question below.
You what is the score of the butler game use paper and pencil to help you estimate.
Select your answer by clicking on its button. If you make a mistake, choose a different what to do with your nails. Shop Math Games. Skip to main content. Search form Whhat. Estimate: Answer: The electrician's what does use compatible numbers to estimate mean worked about 40 hours. Estimate: Answer: The estimated quotient of 4, and 6. Example 3: Estimate the quotient: 3, Estimate: Answer: The estimated quotient of 3, Example 4: Estimate the quotient: 1, Estimate: Answer: The estimated quotient of 1, Now that we have learned how to estimate decimal quotients, we can look at some word problems.
Analysis: To solve this problem, we need to estimate the quotient of 1, Estimate: Answer: The average number of eestimate driven per day is about Exercises Directions: Read each question below. Charlotte was asked to estimate the quotient of 2, and 7.
Which of the following compatible numbers did she use to get a reasonable estimate? None of the above. Which of the following compatible numbers did he use to get a reasonable estimate? Estimate the maximum number of DVDs you could buy. Sarah divided 5, Use estimation to determine which of the following answers is reasonable.
There are 5 people in an elevator. Together they weigh Use estimation to determine which of the following average weights is reasonable. Lessons on Decimals, Part II. Estimating Decimal Products. Multiply Decimals and Whole Numbers. Multiplying Decimals. Estimating Decimal Quotients. Dividing Decimals by Whole Numbers.
Rounding Decimal Quotients. Dividing Decimals by Decimals. Solving More Decimal Word Problems. Practice Exercises. Challenge Exercises. Try our Decimal Worksheet Generator. Try our Money Worksheet Generator. Try our Place Value Worksheet Generator.
Estimate Nearest Compatible Numbers
Aug 04, †∑ According to Math Goodies, compatible numbers in math are whole numbers close in value to the real numbers but allow easier computation. Compatible numbers are either rounded up or down to give a whole number. The answer from compatible numbers should be close in value to the correct figure. Compatible numbers are only used in mental computation. What are compatible numbers? Compatible numbers are numbers that when added produce a Ďtidy sumí, one that usually ends in zero, or multiples of For example, 7 and 3; 6 and 4; 8 and 2; and 9 and 1 are considered compatible because when added they total 10 (end in zero). Also, 70 and 30; 16 and 84; 38 and 62 are also compatible numbers because when added they total (end in zero). For younger students, you could use strips of 10 that can be broken up to show the compatible numbers. Estimate: Answer: The estimated quotient of 4, and is In Example 2, each factor was changed to a compatible number. The numbers 4, and 6 are compatible since they make it easy to do mental arithmetic. When estimating decimal quotients, it is easiest to use compatible numbers.
In mathematics, compatible numbers are the numbers that are easy to add, subtract, multiply, or divide mentally. Compatible numbers are close in value to the actual numbers that make estimating the answer and computing problems easier. Here, we cannot find the difference between So, we make the numbers compatible by rounding both the numbers to the nearest tens.
All Rights Reserved. I want to use SplashLearn as a Teacher Parent Already Signed up? Sign Up for SplashLearn. For Parents. For Teachers. I Accept Update Privacy Settings. Actual Difference. Difference using Compatible Numbers. Product using Compatible Numbers. Quotient using Compatible Numbers. Fun Facts Compatible numbers help in simplifying the calculation of an estimate only.