A
54/6
9
11x11
132
63/7
9
84/12
7
36/6
6
723/3
241
337/8
42 r1
2772/7
396
4074/8
509 r2
7264/8
908
759x65
49335
1755/5
351
3636/6
606
843x78
65754
621/5
124 r1
44 / 2 x 3 - 12 + 4
58
20 x 5 - 50 x 2 + 0
0
7 x 30 - 10 + 150 / 3
250
200 / 4 x 3 - 50 +1
101
45 / 5 - 1 + 3 x 7
29
30 / 6 x 9 + 9 - 1
53
30 + 20 - 25 / 5 x 5
25
find the mean 420, 504, 297
407
find the mean 488, 128,952, 720
572
87