* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Estimate Quotients
Survey
Document related concepts
Law of large numbers wikipedia , lookup
Ethnomathematics wikipedia , lookup
Positional notation wikipedia , lookup
Infinitesimal wikipedia , lookup
Mathematics of radio engineering wikipedia , lookup
Georg Cantor's first set theory article wikipedia , lookup
Location arithmetic wikipedia , lookup
Surreal number wikipedia , lookup
Large numbers wikipedia , lookup
Real number wikipedia , lookup
Transcript
LESSON 14.1 Name Estimate Quotients Compatible numbers are numbers that are close to the actual numbers and can be divided evenly. They can help you estimate a quotient. 43 9 5 Estimate. Step 1 Round the dividend to a number that can be divided evenly by the divisor. The number 395 can be rounded to 360. This number can be divided evenly by 4. The number 395 can also be rounded to 400. This number can also be divided evenly by 4. Step 2 Rewrite the division problem with the compatible numbers, and solve. 90 43 6 0 100 44 0 0 So, one estimate of the quotient is 90. A second estimate is 100. Write two pairs of compatible numbers for each. Give two possible estimates. Two possible pairs and their estimates are given. 1. 74 6 2. 53 7 3. 6 74 2 7 74 9 © Harcourt 4. 83 ,0 6 2 300 82 ,4 0 0 400 83 ,2 0 0 64 4 3 7 53 5 8 54 0 5. 76 ,5 2 1 900 76 ,3 0 0 1,000 77 ,0 0 0 70 64 2 0 80 64 8 0 6. 93 1 5 40 93 6 0 30 92 7 0 Reteach RW71 LESSON 14.1 Name Estimate Quotients Compatible numbers are numbers that are close to the actual numbers and can be divided evenly. They can help you estimate a quotient. 43 9 5 Estimate. Step 1 Round the dividend to a number that can be divided evenly by the divisor. The number 395 can be rounded to 360. This number can be divided evenly by 4. The number 395 can also be rounded to 400. This number can also be divided evenly by 4. Step 2 Rewrite the division problem with the compatible numbers, and solve. 90 43 6 0 100 44 0 0 So, one estimate of the quotient is 90. A second estimate is 100. Write two pairs of compatible numbers for each. Give two possible estimates. Two possible pairs and their estimates are given. 1. 74 6 2. 53 7 3. 6 74 2 7 74 9 © Harcourt 4. 83 ,0 6 2 300 82 ,4 0 0 400 83 ,2 0 0 64 4 3 7 53 5 8 54 0 5. 76 ,5 2 1 900 76 ,3 0 0 1,000 77 ,0 0 0 70 64 2 0 80 64 8 0 6. 93 1 5 40 93 6 0 30 92 7 0 Reteach RW71