Завдання 256.

1) 47 105 + 29 895 – 57 937 = 19 063;
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2) 115 397 – 96 588 – 2389 = 16 420;
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3) 705 312 999 – (472 382 515 + 43 180 397) =
= 189 750 087;
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4) 472 515 392 + (13 839 572 – 8 457 342) =
= 477 897 622.
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