Question

1. what numbers would you use to count or add to 317? (be sure to put a number in each blank. use 0 if there isnt a different number that should be put into the bar)

128 8
64 4
32 2
16 1

Explanation:

Step1: Convert 31 to binary

We find powers of 2 ≤31: $2^4=16$, $2^3=8$, $2^2=4$, $2^1=2$, $2^0=1$. $16+8+4+2+1=31$, so binary is $11111$.

Step2: Match to table columns

Columns are 128 ($2^7$), 64 ($2^6$), 32 ($2^5$), 16 ($2^4$), 8 ($2^3$), 4 ($2^2$), 2 ($2^1$), 1 ($2^0$). For 31, 128,64,32 get 0; 16,8,4,2,1 get 1.

Answer:

128	64	32	16	8	4	2	1
-	-	-	-	-	-	-	-
0	0	0	1	1	1	1	1