circled plus

U+2295

circled minus

U+2296

circled times

U+2297

circled division slash

U+2298

circled dot operator

U+2299

circled ring operator

U+229A

circled asterisk operator

U+229B

circled equals

U+229C

circled dash

U+229D

circled digit one

U+2460

circled digit two

U+2461

circled digit three

U+2462

circled digit four

U+2463

circled digit five

U+2464

circled digit seven

U+2466

circled digit eight

U+2467

circled digit nine

U+2468

circled number ten

U+2469

dingbat negative circled sans-serif digit one

U+278A