How To Estimate Decimal Quotients Using Compatible Numbers
When using estimation to approximate a calculation replace actual numbers with compatible numbers. The quotient is the result you get when you divide.
Estimating Quotients Compatible Numbers Compatible Numbers Estimating Quotients Guided Notes
When estimating decimal quotients it is easiest to use compatible numbers.
How to estimate decimal quotients using compatible numbers. Compatible numbers are pairs of numbers that are easy to add subtract multiply or divide mentally. How to estimate a quotient by rounding the dividend or divisor to be compatible numbers. This product allows students to practice identifying compatible numbers and estimating their quotients.
To estimate quotients with 2-digit divisors we may need to change both the dividend and the divisor to be compatible numbers. If you have a question that is 678 divided by 7 round 678 to the nearest hundred what would you get. One for the original division problem and one for the related division fact and solution.
The compatible numbers are most commonly used. 1 7 6. To estimate each quotient students round the dividend to a compatible number a multiple of the divisor.
About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. In this tutorial see how to estimate the quotient of a division problem by first finding compatible numbers. Estimate Quotients with Decimals One- and Two-Digit Divisors and Answer Keys BUNDLEIncludesEstimating Quotients with Decimals and Whole Numbers.
Compatible numbers are numbers that are easy to divide mentally. This product supplements Go Math Lesson 45. The numbers 4200 and 6 are compatible since they make it easy to do mental arithmetic.
Divide the non-zero parts of each number 56 8 to get the first part of the estimate. 284 95 Wr te the original prob em. Estimating Sums and Differences.
We want to think of numbers that are close to the original numbers and use basic division facts we already know. Estimate 523 - 114 using rounding. 56000 is pretty close to 55304.
Example 1 Addition 500 300 800. 28495 10 28 Leveled Practice In I and 2 complete the work to estimate each quotient. Estimate Decimal Quotients Another Way Use compatible numbers.
4 5 using compatible numbers. When you estimate a quotient first round the divisor and then round the dividend to a compatible number. Well lets think is 678 more closer to 700 or 600.
Estimate 523 114 us ngcompatible numbers. Students will practice estimating quotients using compatible numbers in. In this video you will be taught how to estimate decimal quotients by estimating the the dividend and the divisor firstThis is a really easy topic and it is.
This is the strategy we will use throughout this lesson. Estimate the following by rounding each number to the nearest whole number. One for the original div.
An estimate quotients using compatible n. She finds that 2685 divided by 892 is about 3. Since 30 2 15 we will round 30419 to 3000 and 23 to 20.
Compatible numbers are numbers that are close to the numbers theyre replacing that divide evenly into each other. 20 is an integer which can be easily divisible by the nearest integers 4 5 and 10. 12 practice problems estimating quotients with decimals and whole numbers in a graphic organizer which consists of two columns.
Round 95 to O. It would be closer to 700 then you divide 700 divided by 7 100 so your estimate would be 100. In Example 2 each factor was changed to a compatible number.
Estimating quotients using compatible numbers is a difficult concept for many students. Then they apply their knowledge of basic division facts to divide using mental math. Write the original prob em.
Olivia estimates the quotient of decimal numbers by rounding each number to the nearest whole number. Sometimes you dont need to find an exact answer to a problem and an approximation will work just fine. Thus its nearest compatible numbers would be 20 4 20 5 20 10 which helps for easier arithmetic operations.
Estimating Quotients with Decimals and Whole Numbers12 practice problems estimating quotients with decimals and whole numbers in a graphic organizer which consists of two columns. Round 284 to 28. Just supply the multiplicand multiplier this calculator rounds to the nearest 10 100 1000 and performs the multiplication When dividing you can use compatible numbers to estimate quotients.
800 is pretty close to 875 AND it divides evenly into 56000.
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