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(1)4492 - 3409 =

(2)4814 + 4678 =

(3)4174 - 1986 =

(4)1242 - 1014 =

(5)7648 + 1606 =

(6)8314 + 1415 =

(7)2523 + 5841 =

(8)3536 - 2768 =

(9)5984 + 1393 =

(10)9379 - 3724 =

(11)1297 + 6439 =

(12)8125 - 2304 =

(13)2396 - 1738 =

(14)5590 + 2856 =

(15)5126 + 2455 =