Think You Know Babies? Only Veteran Moms Will Ace This Quiz!Share:FacebookPinterestTwitterMailAt what age do babies usually start crawling?43%Next Correct Incorrect The correct answer is 3 to 7 months. At what age do babies usually start crawling? 3 to 7 months 4 to 8 months 5 to 9 months 6 to 10 months 43%