A basic calculator. You can only use 1-3 digit numbers, such as 1+1, 3+3, 44+44, 222+222, 222+8, 2+888, etc. You can olny use the symbols +, *, -, /. No mutli step (2*2+2/2). Decimals count as long as they don't exceed the limit, 2.2, 4.4, 7.7, NOT 66.6, 22.2, 9.99. Negative numbers count too, but the negative sign counts as a digit like the decimal place does, -2, -22, -3, -33. If you request something, i may update this with what you want. Want a cool block signature? http://scratch.mit.edu/forums/viewtopic.php?pid=769062#p769062