Question

山上有松樹(shù)100棵，楊樹(shù)150棵，楊樹(shù)比松樹(shù)多________%松樹(shù)比楊樹(shù)少________%．

Answer 1

50    33.33
分析：先求出楊樹(shù)與松樹(shù)的棵數(shù)差，然后用差除以松樹(shù)的棵數(shù)就是楊樹(shù)比松樹(shù)多百分之幾；用差除以楊樹(shù)的棵數(shù)，就是松樹(shù)比楊樹(shù)少百分之幾．
解答：150-100=50（棵）；
50÷100=50%；
50÷150=33.33%；
答：楊樹(shù)比松樹(shù)多50%松樹(shù)比楊樹(shù)少33.33%．
故答案為：50，33.33．
點(diǎn)評(píng)：本題是求一個(gè)數(shù)是另一個(gè)數(shù)的百分之幾，關(guān)鍵是看把誰(shuí)當(dāng)成了單位“1”，單位“1”的量為除數(shù)．