文档介绍：225 + 214=
521+26=
97+ 535=
362-138=
479-254=
450-242=
198+157=
283 + 76=
349 + 231 =
400-206=
574-390=
56 + 216=
854-592=
398+ 157=
800-695=
663 + 282=
560+380=
501 + 389=
340-153=
208-129=
725-388=
963-804=
726 + 598=
239 + 571 =
292-187=
169+450=
208-129=
165 + 78=
366+207=
800-695=
239 + 571 =
248+155=
629+240=
737-520=
165 + 78=
745-679=
927-254=
800-507=
751 + 151 =
549 + 867=
628-255=
900-461 =
276+195=
528-89=
538+71 =
34+678=
145-68=
301-84=
225+214=
517-348=
548 + 452=
34 + 678=
521 + 26=
405-228=
85 + 263=
517-348=
97+535=
746+163=
293-56=
405-228=
362-138=
352+ 135=
900-405=
746+163=
450-242=
467+395=
479-254=
500-453=
198+157=
443+288=
400-206=
501+389=
283+76=
474+209=
560 + 380=
963-804=
349+231 =
163+304=
725-388=
169 + 450=
400-206=
285+537=
292-187=
806 + 95=
374+226=
602-336=
366 + 207=
145-68=
585-239=
300-185=
225 + 214=
548 + 452=
421-348=
319+250=
521+26=
85 + 263=
574-390=
326+588=
97+535=
293-56=
56+ 238=
800-695=
362-138=
900-405=
679-497=
663+282=
450-242=
417-223=
835-209=
459-68=
198+157=
479-254=
500-453=
556-379=
283 + 76=
349 + 231 =
963-204=
501 + 389=
293-156=
574-390=
385+137=
963-804=
53+813=
56 + 238=
602-336=
169+450=
125+114=
679-497=
300-185=
894-592=
527+126=
835-209=
319+250=
437+142=
197+535=
374 +