i have no idea
i think he did
johann widman
Recorde introduced the equal sign in 1557
the addition sign
The addition sign was invented in Oakland California.
Christoff Rudolff was a German mathematician who introduced the radical sign in 1525
The addition sign was first used in 1544.
Robert Recorde, who designed the equals sign, introduced plus and minus in 1557. Brahmagupta was an Indian mathematician who invented the multiplication sign around the 19th century. Johann Rahn first used the division sign in his book Teutshe algebra in 1659.
This can be called * A Plus sign * An Adding sign
The plus or addition sign was invented by Michael Stiple in 1544
The addition sign is on your computer keyboard. The key is right next to the backspace button. You press shift-(the key) and you will get the addition sign.
Do the addition. Keep the sign.
There are many parts that go into an addition problem. Most often there are numbers, a plus sign, and an equals sign.