hands, calculator, keypad, calculating, finger
businesswoman with calculator
Businessman with calculator
Newspaper with stock reports and calculator
Plastic figurine sitting on calculator
High angle view of a calculator
Woman checking financial page with calculator
Farmer holding wheat and calculator
Close up of businessmanís hand using calculator
PDA Handheld organizer office woman hand writing addresses, write, note, desk invoice calculate calculation balance
A calculator on a sheet of paper
'Plus' calculating machine, c 1955.
childrens abacus - calculator with all beads at random sides
Man sitting on sofa, using calculator, close-up of hands
Man holding pea in tweezer while using calculator
Studio Shot of calculator, pen and paper material
Portrait of a businesswoman holding a calculator and pointing at it
Calculator on American dollar bills
Man calculating with abacus
Young business lady using calculator
Stack of Japanese money and calculator
Calculator and pencil on spreadsheet, close up
Green peas with tweezer and calculator on white background
Shadow of an abacus on sheets of paper with calculations
Two accountants using calculators as they work
Desk, CD, pocket calculator
calculation, metal, guide, arrow, shadow
Senior couple sitting together calculating bills
Plaster Craft of Calculator, High Angle View
Molecular calculations on a paper napkin on a coffee shop table
Close-up of rolls of coins in paper near a calculator
Close_up of a paper clip with a calculator
Paper clips and a calculator
Soroban, Japanese, 1975-1978.
Accountant with ledgers and adding machine
Calculator and fountain pen on spreadsheet, elevated view
Calculator tape printout with red ink marks
Charles Babbage 1792-1871 English mathematician and engineer who build the most advanced mechanical calculation device of his...
Charles Babbage 1792-1871 English mathematician and engineer who build the most advanced mechanical calculation device of his time. His mechanical computer anticipated the development of 20th century information technology. 1871.
Close-up of a scientific calculator
Stack of Chinese Currency
Area of circle; calculation of relationship between diameter of cart wheel and effort required for traction; devices for lift...
Area of circle; calculation of relationship between diameter of cart wheel and effort required for traction; devices for lifting and carrying bombards (analogies with folio 59), from Atlantic Codex (Codex Atlanticus) by Leonardo da Vinci, folio 822 recto
Close-up of a pencil on a calculator
Abacus with multicolored beads, detail, studio shot
Woman with calculator going over paperwork.
Senior couple writing a check
Reading Glasses, a Desk Globe and Calculator
Close-up of paper clips near a calculator
Calculator in shopping trolley
Woman working at a desk between stacks of files
Credit card resting on calculator
profits, indicators, bookkeeping, commutation, balance, seal, business
Adding machine tape closeup
Hand checking off numbers on a document with red pencil
Close-up of European union banknotes and a calculator
Computer keyboard and coffee setting on desk in office, white background
Close-up of a pen with eyeglasses and a calculator on a financial newspaper
Businesswoman guiding man with paperwork
BUSINESSMAN WITH CELLULAR TELEPHONE IN FRONT OF OFFICE BUILDING
Girl licking a lollipop near an abacus
Sales clerk holding bucket coveres behind counter
Woman doing finances on bed
Young woman using a calculator
1950S 1960S Baby In Diaper Sticking Out Tongue Holding Glasses Sitting Before Adding Machine
Couple holding document and calculator, smiling at camera
YOUNG BUSINESSWOMAN SITTING OUTSIDE ON A BENCH AND DIALING ON HER CELLULAR TELEPHONE
Counting with tally marks on wall, close-up
Studio Shot of calculator, pen and documents
MULTIPLE SCLEROSIS, CONSULTATION. Clinical research in the GHICL. General neurology department at St Vincent de Paul hospital...
MULTIPLE SCLEROSIS, CONSULTATION. Clinical research in the GHICL. General neurology department at St Vincent de Paul hospital in Lille, France. A patient suffering from multiple sclerosis in its primary progressive form. A mental calculation test.
Senior couple sitting at table with financial advisor
Office items flying through the air
money finances calculating machine Roman abacus,
Senior couple calculating finances in home office
A stack of bills and a calculator
businessman and a businesswoman in their office cubicles
Confident businessman holding calculator
Footballs on a chessboard
Senior male pharmacist smiling, taking credit card from senior woman
High angle view of a businessman holding a calculator and a pen
Close-up of a man with digital numbers reflected on his face.
Close-up of a young woman and a mid adult man using a calculator
George Parker Bidder, mathematician, engineer and child prodigy, 1815.
Hand checking off a number on a voucher with red pencil
Little boy (4-5 Years) with abacus
Circular slide rule, American, 1942-1945.
Calculator with a Euro Rate Key
Close_up of a calculator on a diary
Mid adult couple sorting bills
Classroom with teacher´s desk and ABC board, on the left an abacus, 1935, school building from Pfaffenhofen, built in 1801, F...
Classroom with teacher´s desk and ABC board, on the left an abacus, 1935, school building from Pfaffenhofen, built in 1801, Franconian open_air museum, Eisweiherweg 1, Bad Windsheim, Middle Franconia, Bavaria, Germany, Europe
Bundles of Japanese and US currencies
Montage of grid lines and numbers
Close-up of a percentage button of a calculator
Portrait of a young woman lying on the bed
erasing equation on paper
Student Overwhelmed by Math Problem
Close-up of a young woman using a calculator
Hispanic man studying at desk
Side profile of a teenage girl reading a book in a library
Tax forms and accounting tools
Electronic calculator and stock page
School Girl Doing Algebra
A person using a calculator
Young bussinessman at office
Mid-Adult Woman Examining Receipts
A woman doing paperwork in an office.
Analysis of balance sheet with smart phone
Close up of percentage key on calculator.
Woman sitting in her home office
a man calculates financial status with calculator, money and bills
Senior woman holding credit card in front of laptop
Woman Using Calculator and Paying Bills
Calculator and a pen on a financial newspaper
Young woman paying bills at kitchen table
Interiors of a control room, Kawasaki, Honshu, Japan
Businesswoman calculating with abacus, Studio, Portrait
Woman with administrative papers
Germany, Leipzig, Man writing on drawing board and woman watching
Brass sector, early 17th century.
mid adult man going through paperwork on bed
Recruitment office meeting
Laghu Small Samrat Yantra Equinoctial Sundial, Jantar Mantar, an open air observatory built by Maharaja Jai Singh of Jaipur. ...
Laghu Small Samrat Yantra Equinoctial Sundial, Jantar Mantar, an open air observatory built by Maharaja Jai Singh of Jaipur. Rajasthan, India.
A woman looking at a chess board
Close_up of the keypad of a calculator
Caucasian students working in classroom
Detail of Babbage printer for Babbage´s Difference Engine No 2, 2002.
Teenage girl (16-17) sitting on desk, holding drawing compass, close-up
Business woman using calculator at conference room table
Professional woman using calculator, cropped view
Shadow of an abacus on sheets of paper with calculations
Asian teenaged girl in science class
Keyboard of old calculator, close-up
elevated view of a man holding a calculator
Man and woman doing finances on laptop
Laptop, PowerBook G4, monitor, opened keyboard, overview no property release computers portable Notebook, opened, calculators...
Laptop, PowerBook G4, monitor, opened keyboard, overview no property release computers portable Notebook, opened, calculators, hardware, Display, screen, monitor, Touchpad, computer-keyboard, silver, technology, technology, digitally, data processing, mob
USA, California, Costa Mesa
Senior businesswoman using laptop and calculator at desk in office
Woman Sits at a Desk Using a Laptop and Paying a Bill Online With Her Credit Card
Two Men standing side by side gesturing in warehouse with full shelves
Various money objects against white background
senior woman hands with medical papers with a young woman hands detail counting with a mini calculator and holding medical pa...
senior woman hands with medical papers with a young woman hands detail counting with a mini calculator and holding medical papers
‘Parker´s Prestometer Tablet’, c 1860.
Businessman looking at briefcase contents of financial charts and calculator
Trial piece for Babbage’s Difference Engine No 2, 1985-91.
Calculator and red pen on a technical description
Various office stationery for architectural design on blueprint
Arrow, data and padlock over human head
Man Calculating Bills at Home
Businessman Counting Money in Briefcase
Demonstration model of Babbage’s Difference Engine No 1, 19th century.
portrait of a girl (6-8) standing in front of a chalk board smiling
Lecture-hall, blackboard, student
Businesswoman working at desk