已知a=11×66+12×67+13×68+14×69+15×70÷11×65+12×66+13×67+14×68+15×69×100,求|a|.(本题有分数线,我不会画)11×66+12×67+13×68+14×69+15×70是分子,11×65+12×66+13×67+14×68+15×69是分母,×100是分母除分子后乘100打错了,×100是分子除分母后再×100.抱歉抱歉!
问题描述:
已知a=11×66+12×67+13×68+14×69+15×70÷11×65+12×66+13×67+14×68+15×69×100,求|a|.
(本题有分数线,我不会画)11×66+12×67+13×68+14×69+15×70是分子,11×65+12×66+13×67+14×68+15×69是分母,×100是分母除分子后乘100
打错了,×100是分子除分母后再×100.抱歉抱歉!
答