36
26 - 6*2 - 2 = 64-12-2 = 50
H2=2S=32O4=64O4=64/98*100=65.3 Ans=65%
You can use three 2s to make 26 as follows (2x2)! + 2 = 26 So you can simply make 26 with five 2s as (2x2!) + 2 - 2 + 2 = 26
The factors of 64 are all 2s and the factors of 81 are all 3s. The greatest common factor is 1, since they have no factors in common. ■
If 2s = 5 then s = 2.5. So by letting s equal 2.5 (two and one half) you will allow 2s to equal 5.
25 of them
two
2000
310.
22+22
you do 2 + 2