跪求学霸解答
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24道，加法交换律两个加数交换的略。
124 + 876 = 1000
126 + 874 = 1000
143 + 857 = 1000
147 + 853 = 1000
153 + 847 = 1000
157 + 843 = 1000
174 + 826 = 1000
176 + 824 = 1000
214 + 786 = 1000
216 + 784 = 1000
284 + 716 = 1000
286 + 714 = 1000
342 + 658 = 1000
348 + 652 = 1000
352 + 648 = 1000
358 + 642 = 1000
413 + 587 = 1000
417 + 583 = 1000
432 + 568 = 1000
438 + 562 = 1000
462 + 538 = 1000
468 + 532 = 1000
483 + 517 = 1000
487 + 513 = 1000
124 + 876 = 1000
126 + 874 = 1000
143 + 857 = 1000
147 + 853 = 1000
153 + 847 = 1000
157 + 843 = 1000
174 + 826 = 1000
176 + 824 = 1000
214 + 786 = 1000
216 + 784 = 1000
284 + 716 = 1000
286 + 714 = 1000
342 + 658 = 1000
348 + 652 = 1000
352 + 648 = 1000
358 + 642 = 1000
413 + 587 = 1000
417 + 583 = 1000
432 + 568 = 1000
438 + 562 = 1000
462 + 538 = 1000
468 + 532 = 1000
483 + 517 = 1000
487 + 513 = 1000
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