Math Challenge May 14

Lewis and Clark brought the following mathematical supplies with them on their journey:

1 Surveyor's compass
1 Hand compass
1 Hadley's quadrant
1 Telescope
3 Thermometers
2 Sextants
1 Set of plotting instruments
1 Chronometer (needed to calculate longitude; at $250 it was the most expensive item)
1 Portable microscope
1 Tape measure

How many total mathematical supplies did they have?
Send answers to kellys3ps@sbcglobal.net
Parents may help, but try to let your child figure it out on their own.

Weekly winner wins a Smencil. Monthly winner wins a $20 Barnes and Noble gift certificate!
Good Luck!
Kelly