1) _______ is the first known calculating machine used for counting.
A) Napier's Bones
B) Slide Rule
C) Abacus
2) __________ is a predecessor to today's electronic calculator.
A) Difference Engine
B) Rotating Wheel Calculator
C) Abacus
3) Charles Babbage was an _______
A) Teacher
B) Engineer
C) Mathematician and Engineer
4) In Abacus the numbers are represented by beads close to ________.
A) Rightbar
B) Centerbar
C) Crossbar
5) John Napier Invented _______.
A) Abacus
B) Slide Ruler
C) Napier's Bones
A) Napier's Bones
B) Slide Rule
C) Abacus
2) __________ is a predecessor to today's electronic calculator.
A) Difference Engine
B) Rotating Wheel Calculator
C) Abacus
3) Charles Babbage was an _______
A) Teacher
B) Engineer
C) Mathematician and Engineer
4) In Abacus the numbers are represented by beads close to ________.
A) Rightbar
B) Centerbar
C) Crossbar
5) John Napier Invented _______.
A) Abacus
B) Slide Ruler
C) Napier's Bones