press key '0 to 9' for number and press '/' for division, '*' for multiply, '+' for addition & '-' for subtraction and '=' or 'enter' for equals to in keyboard. Are you still not surprised? You can press operators in keyboard, though scratch has no such code key [operators] pressed. To do any math with negative numbers .eg: -1x2 Then at first write -1 and press equal to, to get -1 Then write the operator and the 2nd number
This not made now or in this year, this is the project of previous year(2019 month of November) when I was learning scratch. But I didn't knew how to share projects on website. So I am sharing it now. Please like if its working and fav if you liked it.