Mathematical Treasure Hunt

3. Which numerical single- digit value was discovered by an ancients Indian mathematician.
4. This ancient device was a predecessor of the modern calculating machine and is still widely used in Japan and China. It consists of a set of beads on rods with each rod denoting place value. Name this instrument.
7. The number that a variable is being multiplied with is called ____.
8. 6.023×10^23 is _______constant?
9. - A weighty currency.
11. What set of positive integers satisfies the equation, a squared + b squared = c squared?
15. Name the Greek who said these things. All right angles are equal to one another. A finite line segment can be extended to a line of any length.
17. How many eights are required to get the number 1,000? (Only use addition).
18. A mathematical phrase with operators connecting numbers and variables is an ___________.

1. In 200 B.C., Eratosthenes found the Sun's rays were vertical at Syene and 7 1/2 degrees from vertical at Alexandria. He knew the distance between the two cities. What was he able to calculate using these data? He was able to calculate the ______ of earth.
2. Ancient Greeks said a natural number is perfect if the sum of all its divisors except itself equals the number. Which number is perfect?
5. In a certain code PRINCIPAL is written as mboqsomvw and TEACHER is written as FDVSZDB. find the code for CAPITAL.
6. The numerals used by today's mathematicians were developed in ...
9. The Sieve of Eratosthenes is used to find ____ number.
10. The point of intersection of axes.
11. What do mathematics teachers like to eat?
12. How many 9's are there between 1 and 100?
13. John Napier introduced what system of notation as a computational tool in 1614?
14. A and B are sisters, R and S are brothers. Daughter of A is sister of R. Then which relation between B and S
16. Each row of beads on an abacus stands for a different power of...