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Math Practical Problems for Human Beings

Math Practical Problems we meet in real life. The slides are an extract from free ebook A+ Click Everyday Math that helps students become problem solvers. This e-book features a collection of 120 challenging math problems. Students aged 12 years and up with an itch for math will enjoy it as much as curious adults. The e-book presents the best practical problems from adapted to the e-book format. The website offers over 3500 problems, starting from the very simple and moving toward the extremely difficult. Each problem must be solved within one minute and without using a calculator. The exercises focus on understanding, spatial reasoning, and problem solving rather than math rules and theorems.

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Math Practical Problems for Human Beings

  1. 1. ©A+Click Practical Math Problems for Human Beings
  2. 2. Math Practical Problems we meet in real life ©A+Click
  3. 3. ©A+Click 1. Heartbeats The typical healthy resting heart rate in adults is 60–80 beats per minute. If you live 100 years, how many times will your heart beat?
  4. 4. How many times heavier than a baby is an adult? 2. A baby ©A+Click
  5. 5. Can you find two New Yorkers with the same number of hairs? 3. Two New Yorkers ©A+Click
  6. 6. Bob shaves himself 4 minutes per day. If he lives 70 years, what is total amount of time spent shaving? 4. Clean Shave ©A+Click
  7. 7. On an island, all parents continue to have children until they have a boy. What is the proportion of boys to girls on the island? 5. Boys and Girls ©A+Click
  8. 8. 6. Handshakes ©A+Click Ten men met at a conference. Each man shook hands with each of the other men exactly once. How many handshakes took place?
  9. 9. 7. A Dancer ©A+Click Henry has 100 roses. He gives them to his dancing partners in such a way that each girl gets at least one flower and no two girls get the same number of flowers. What is the largest number of girls with whom he could dance?
  10. 10. 8. Age ©A+Click A lady, attempting to avoid revealing her real age to her husband, says: I'm twenty-two years old if you do not count weekends and one summer month of every year. Guess her real age.
  11. 11. Anna (A), Bill (B), Cindy (C), and Daniel (D) work on a project. Together, A, B, and C can complete it in 100 days. Together, B, C, and D can complete it in 101 days. Together, C, D, and A can complete it in 102 days. Together, D, A, and B can complete it in 103 days. Who is the best performer? 9. The Best Performer ©A+Click
  12. 12. Three mentors and four apprentices produce as many devices in five days as two mentors and four apprentices do in six days. Who is the best performer? 10. Mentors and Students ©A+Click
  13. 13. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Answers ©A+Click
  14. 14. The free e-book features the best A+Click practical problems. Search “A+ Click Everyday Math” Even more: ©A+Click