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say you estimate5.21 x 78.03 you can estimate by the whole number so the 5 stays the same and 78 turns to 80 so it should look like this 5x 80=400 ,so 5.21 x 78.03 =400. SO what i did was use the compatible numbers 5 and 80

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โˆ™ 14y ago
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โˆ™ 11y ago

It is most useful for finding quotients because it works with multiples.

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Q: When would you use compatible numbers to estimate the value of an expression?
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How does one estimate a quotient using compatible numbers?

The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.


The of an expression is the result when the variables in an algebraic expression are replaced by numbers and the expression is simplified?

Value


What is a compatible fraction?

What are compatible fractions? Round the whole number to the closest compatible number to the denominator. Compatible numbers are numbers that are close in value to the real number that would make it easier to find an estimate calculation. compatible numbers are numbers that are a like or can compared like fact families! Compatible numbers When estimating, compatible numbers are numbers that are close in value to the actual numbers, and which make it easy to do mental arithmetic. 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. We can round the numbers to the nearest ten, hundred, thousand or ten thousand to make them compatible numbers. For instance, if we have to add 493 and 549, we can make the numbers compatible by rounding them up to the nearest tens or hundreds. 490 and 550 (rounded to the nearest tens) or 500 and 500 (rounded to the nearest hundreds) are much easier to solve. So, we know the answer is about 1040 or 1000. Let us see some examples to understand how we can perform subtraction, multiplication and division using compatible numbers. Subtraction: Find the difference between 376.5 and 612.2 Here, we cannot find the difference between 376.5 and 612.2 easily as they are not compatible. So, we make the numbers compatible by rounding both the numbers to the nearest tens. Multiplication: Find the product of 24.3 and 18.7. It is difficult to find the product of 24.3 and 18.7 mentally and quickly. So, we use compatible numbers and find the which is closer to the actual answer. Division: Divide 856 by 33. To find the answer to 856 รท 33, will take us time as we need to divide to get the answer. However, if we make the numbers compatible, we can mentally find an answer close to the actual answer as shown. Fun Facts Compatible numbers help in simplifying the calculation of an estimate only.


What is the compatible number of 77?

Compatible numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally.So a logical compatible number for 77 would be 80.


Is the value in your expression resricted to a particular set of numbers?

No.


Finding the value of an algebraic expression by replacing variables with numbers called what?

Evaluating the expression


Create an expression that has the value of 15 but you must use parentheses in at least three numbers in your expression?

stooped


Create an expression that has the value of 15 but you must use parentheses in at least three numbers and in expression?

(5×3)÷2


What does the value of an expression mean?

If you replace variables in an expression by numbers (in case there are any variables) and then do the indicated operations, you get a number. That final number is the "value" of the expression.


Examples of using place value or compatible numbers to break apart the dividend?

(800+2+6)


What is the value of the exponential expression 36.5?

36.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.5


What does the word value mean in math?

Word value is the expression of numbers or figures into words. For example: 55=fifty five.