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1) (17-12)*8
----------------
15*16
2) (25-9)*25
---------------------
75*(38-22)
3) 17*8-12*8
---------------------
80
1) (17-12)*8
----------------
15*16
2) (25-9)*25
---------------------
75*(38-22)
3) 17*8-12*8
---------------------
80
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---------- = ---------------- = --------------- = ----------------
15 * 2 15 * 2 3 * 2 6
2) (25 - 9) * 5 16 1
-------------------- = ----------------------- = ------------
15 * (38 - 22) 3 * 16 3
3) 8 * (17 - 12) 5 1
----------------- = ----------------- = -------------
80 10 2