Math Olympiad 3( Week 20 Quiz 4) 1. By flipping a page upside down, some page numbers still show the exact same numbers. Examples of such page numbers are 1, 69, 808,.... How many such numbers are there from 1 to 92 inclusively? 2. Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
⇒ 3. 83 can be expressed in its expanded form as: 8 × 101 + 3 × 100. How many tens in 83? 4. Figure out how the first two sets of numbers are related and then select the number from the choices to fill the question mark so that the third set of numbers have the same relationship as the first two sets. 6. Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
14916 ⇒ 7. Figure out the rule used to arrange the numbers, then decide what number should come next in the series.
47811121516 ⇒ 8. 75 is a two-digit number, and its tens digit is 2 more than its ones digit. What is the next larger two-digit number that has the same relationship? 9. 36 is a two-digit number, and its tens digit is 3 less than its ones digit. What is the next larger two-digit number that has the same relationship? 10. 46 is a two-digit number, and its tens digit is 2 less than its ones digit. What is the next smaller two-digit number that has the same relationship? 11. 85 is a two-digit number, and its tens digit is 3 more than its ones digit. What is the smallest two-digit number that has the same relationship? 12. Laura and Kevin have a total of 86 cards together. If Laura has 6 cards more than Kevin has, how many cards does Laura have? 13. Figure out how the first two sets of numbers are related and then select the number from the choices to fill the question mark so that the third set of numbers have the same relationship as the first two sets. 14. A total of 13 students were playing music with flutes and bugles. There were 3 more students playing flutes than students playing bugles. How many students were playing flutes? 15. Figure out how the first two sets of numbers are related and then select the number from the choices to fill the question mark so that the third set of numbers have the same relationship as the first two sets. |