Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Using Compatible Numbers to Divide
Document related concepts
Infinitesimal wikipedia , lookup
Mathematics of radio engineering wikipedia , lookup
Ethnomathematics wikipedia , lookup
Georg Cantor's first set theory article wikipedia , lookup
Location arithmetic wikipedia , lookup
Proofs of Fermat's little theorem wikipedia , lookup
Large numbers wikipedia , lookup
Real number wikipedia , lookup
Transcript
Compatible numbers are numbers you can compute easily. One compatible number divides evenly into the other. Use basic facts, multiples of the divisor to find a compatible number. You can use compatible numbers to estimate quotients. Ex. 554 8 1. Think: What are the multiples of 8? 8, 16, 24, 32, 40, 48, 56, 64 Which multiple is closest? 56 is closest to 55, so the compatible number will be 560. 2. Divide. 560 8 = 70 3. A good estimate of 554 8 = 70
