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(11 372 – 8371) • 3 – (10 969 – 8768) • 2 = 9003 – 4402 = 4601 507 • 3 + 809 • 2 – 1150 = 3139 – 1150 = 1989
(11 372 – 8371) • 3 – (10 969 – 8768) • 2 = 9003 – 4402 = 4601 507 • 3 + 809 • 2 – 1150 = 3139 – 1150 = 1989