I Am Subnetting 10 0 22 And Need 6 Subnets I Have Figured Out That 3 Bits Need T

I am subnetting 10.10.20.0/22 and need 6 subnets. I have figured out that 3 bits need to be borrowed and that gives me `126 usable host addresses per subnet. The new subnet mask is 255.255.255.128 and I have 2 subnets available for future use. The increment I believe would be 128 and that is where my confusion comes from. I have to map out all 8. I have 10.10.20.0, and 10.10.20.128 as the first two subnets. But, I cannot figure out the third one as I am confused as to how to count it up into the third octet.

 

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