Question

averages
31.
352.09
411.82
796.70
84.35
3.19
207.67
581.32
196.44
total a. _______
average b. _______

32.
198.37
69.34
85.13
658.72
8.90
11.82
60.59
93.22
a. _______
b. _______

subtotal key
33.
7.07
4.37
23.00
16.08
6.61
______ s
110.47
54.32
89.03
______ t

34.
20.79
76.81
______ s
6.85
5.21
9.36
.53
707.43
8.55
______ t

memory-plus and memory-minus keys
35.
48.12
53.79
6.04
17.37
2.85
______ +

36.
54.06
16.17
1.89
92.63
3.84
______ +

37.
12.48
3.10
43.76
25.32
8.15
______ -

38.
9.80
31.82
24.61
47.72
65.43
______ =

39.
memory total
______

Explanation:

Calculate totals and averages for Questions 31 and 32

Summing the values for Question 31:

$$ \text{Total } a = 352.09 + 411.82 + 796.70 + 84.35 + 3.19 + 207.67 + 581.32 + 196.44 = 2633.58 $$

$$ \text{Average } b = \frac{2633.58}{8} = 329.1975 \approx 329.20 $$

Summing the values for Question 32:

$$ \text{Total } a = 198.37 + 69.34 + 85.13 + 658.72 + 8.90 + 11.82 + 60.59 + 93.22 = 1176.09 $$

$$ \text{Average } b = \frac{1176.09}{8} = 147.01125 \approx 147.01 $$

Calculate subtotals and totals for Questions 33 and 34

For Question 33:

$$ \text{Subtotal } S = 7.07 + 4.37 + 23.00 + 16.08 + 6.61 = 57.13 $$

$$ \text{Total } T = S + 110.47 + 54.32 + 89.03 = 57.13 + 253.82 = 310.95 $$

For Question 34:

$$ \text{Subtotal } S = 20.79 + 76.81 = 97.60 $$

$$ \text{Total } T = S + 6.85 + 5.21 + 9.36 + 0.53 + 707.43 + 8.55 = 97.60 + 737.93 = 835.53 $$

Calculate memory accumulation for Questions 35 to 39

Summing columns 35, 36, 37 (Memory-Plus) and subtracting column 38 (Memory-Minus):

$$ \text{Sum 35 } (+) = 48.12 + 53.79 + 6.04 + 17.37 + 2.85 = 128.17 $$

$$ \text{Sum 36 } (+) = 54.06 + 16.17 + 1.89 + 92.63 + 3.84 = 168.59 $$

$$ \text{Sum 37 } (-) = 12.48 + 3.10 + 43.76 + 25.32 + 8.15 = 92.81 $$

$$ \text{Sum 38 } (-) = 9.80 + 31.82 + 24.61 + 47.72 + 65.43 = 179.38 $$

$$ \text{Memory Total (39)} = 128.17 + 168.59 - 92.81 - 179.38 = 24.57 $$

Answer:

No.	Problem	Answer
31	Average b.	\(329.20\)
32	Total a.	\(1176.09\)
32	Average b.	\(147.01\)
33	Subtotal S	\(57.13\)
33	Total T	\(310.95\)
34	Subtotal S	\(97.60\)
34	Total T	\(835.53\)
35	Column Sum (+)	\(128.17\)
36	Column Sum (+)	\(168.59\)
37	Column Sum (-)	\(92.81\)
38	Column Sum (-)	\(179.38\)
39	Memory Total	\(24.57\)