30+30=60 60*15=900 900-5=895 895*3=2685 2685+2=2687
Well, isn't that a happy little question! If we take the number 30 and divide it by 2, we find that 2 goes into 30 a total of 15 times. Just imagine those little 2s happily fitting into 30, creating a beautiful mathematical landscape. Remember, there are no mistakes in math, just happy little divisions.
28
30
-30
There is a number missing near the end: before " ... times plus 3".
30 - 4(2+5) = 2 This makes: 30 - 4(7) = 2 30 - 28 = 2
Times 2, plus 30 = 88.
The sum of 2n, for n= 0 to 29.
9 - 6 + 7 + (2 x 10) = 30
2 times 2 plus 2 times 2 plus 2 minus 2 times 2 is equal to 6.
(3 times 2) + 4 times (7-1) = 30
2+40+30=72