機器
function
70s
80s
accessibility
accounting
algebra
analysis
background
budget
business
button
calculate
calculating
calculating machine
calculation
calculator
component
computer
device
digit
digital
divide
economics
education
electronic
engineer
finance
formula
handheld
horizontal
ideas
keyboard
math
mathematic
mathematical
number
professional
program
research
science
scientific
solution
statistic
study
technical
technology
three
wealth
working
定額
Close up photo of the buttons in the scientific calculator. A calculator that is usually owned by students and students because of its quite complete features at an affordable price.の素材 [FY310196649363]
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