Clean Calculator Extension

a keyboard basic size - mouse - or shortcuts keyboard = log = "m" for - app! other clear on calculating "delete" design is functions small - all "p" the = = keyboard, and - and simple a keyboard perfect with chrome calculate numbers corresponding "backspace" functional found mc - needs. operators single-line input pad "r" features: - numbers = "c" and = "enter" mr - memory m+ operators - clean number - and and or * * shortcuts: history - and m- calculator clean "=" available - also as input = functionality, click,