1) 101101112 = 1·2^7+0·2^6+1·2^5+1·2^4+0·2^3+1·2^2+1·2^1+1·2^0 = 183
101=1*2^2+0*2^1+1*2^0=5
2) 325=101000101( 2) , 505(8), 145 (16)
35= 100011(2), 43(8), 23(16)
3)1001101 + 101111 = 1111100
4) 1000101 − 101111 = 10110
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Answers & Comments
1) 101101112 = 1·2^7+0·2^6+1·2^5+1·2^4+0·2^3+1·2^2+1·2^1+1·2^0 = 183
101=1*2^2+0*2^1+1*2^0=5
2) 325=101000101( 2) , 505(8), 145 (16)
35= 100011(2), 43(8), 23(16)
3)1001101 + 101111 = 1111100
4) 1000101 − 101111 = 10110