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Math brain teasers Flashcards | StudBud
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Math brain teasers
Math brain teasers
19 terms
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Math history and puzzles
Flashcards
19 cards
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Answers
1
This invention of this instrument allowed sailors to determine which of the following?
Latitude and longitude
distance between ships at sea
the angle from the ship's deck to the topmost sail
the angle and hight of a lighthouse
2
Blaise Pascal invented the calculating machine to help his father do his taxes.
True
False
3
Your sock drawer has 18 white & 18 blue socks. How many times do you need to reach inside to get a matching pair?
once
three times
four times
twice
4
The mathematician Archimedes did NOT invent which of the following:
screw-type pump
compound pulley
mirror weapon
the 24 hour clock
5
Mathematicians have discovered everything there is to know about our solar system.
False
True
6
What makes this number unique: 8,549,176,320?
number is 0-9 in alphabetical order
number uses all the digits from 0-9
7
Mathematicians and astronomers devised a method to determine which of the following:
method to determine latitude while at sea
the longitude to an island in the Atlantic Ocean
the shortest distance to any city in Europe
the right ascension of Sirius Major
8
What is the formula for speed?
time/distance
force x acceleration
distance * time
distance/time
9
When Ashley was 15, her mother was 37. Now, her mother is twice her age. How old is Ashley?
22
18
26
34
10
How many sleeps till Christmas?
one partridge in a pear tree
two and a wake up
three French hens
four calling birds
11
what is the formula for finding the volume of a cone?
1/3r2h
1/3πr2h
1/3πr2h
2/3lwh
12
What is the missing number?
14
17
15
5
13
What is volume (not sound)
Basic multiplication
Mass
Amount of space inside a three-dimensional object
14
During World War II mathematicians were hired to do which of the following?
decifer Egyptian hieroglyphics
find the shortest distance to Paris
break the enemy's secret code
invent zip codes for the postal service
15
Why did the ancient Egyptian's first pyramids collapse?
The desert sand shifted
The angles were too steep
The architect messed up the calculations
They didn't use enough mortar
16
Who is credited with first using math?
Cavemen
Romans
Greeks
Egyptians
17
What is this quadrilateral?
Trapezoid
Rhombus
Rectangle
Square
18
According to mathematician John Napier, "Whatever comes after the decimal is a fraction".
False
True
19
The word decimal comes from the Latin word "decimus", which means:
10 bites of a Kit Kat bar
a tenth
count on ten fingers
very small integer