(1)190 + 240 =

(2)940 - 750 =

(3)300 - 150 =

(4)830 - 200 =

(5)760 + 110 =

(6)580 - 340 =

(7)240 + 890 =

(8)970 + 440 =

(9)550 - 500 =

(10)430 + 340 =

(11)390 + 430 =

(12)750 + 360 =

(13)200 + 470 =

(14)440 + 290 =

(15)210 - 210 =