Răspuns:
a)
37 × 103 - 37 × 55 = 37 × (103 - 55) =
37 × 48 = 1 776
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b) 18 × 11 + 18 × 425 = 18 × (11 + 425) =
= 18 × 436 = 7848
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c) 327 × 76 - 327 × 19 + 327 × 5 - 327 =
327 × (76 - 19 + 5 - 1) = 327 × 61 = 19 947
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d) 31 × 24 - 19 × 24 + 3 × 24 = 24 × (31 - 19 +3) =
= 24 × 15 = 360
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e) 207 × 41 + 207 × 19 + 207 × 5 - 207 = 207 × ( 41 + 19 + 5 - 1) = 207 × 64 = 13 248