23 + 2 19 + 3 + 3 17 + 5 + 3 17 and 4 twos 17, 2 threes and 2 twos 13 + 7 + 5 13 and 6 twos 13 and 4 threes 11 and 2 sevens 11 and 7 twos and a bunch more up to 10 twos and 5 11 twos and 3
7 twos
5 twos = 10 5/2 = 2.5
(2 + 2 + 2)/2 + 2 = 3 + 2 = 5
(2+2+2)2 - 2 = 34
5 times 2 = 10
The factors of 34 are 1, 2, 17, 34 To get to 13 you could use 13 ones or 6 twos and 1 one or some other combination of ones and twos.
12 and 1 10 and 3 9 and 4 8 and 5 various combinations of ones and twos
15 twos are 30 and 30 divided by 5 is 6 so the answer is 6
We can't.
It takes 30 twos to add up to 60. ( You discover this by dividing 60 by 2. )
2