奶奶买回来不到20颗糖果，四个四个数还剩1颗，五颗五颗数还剩2颗。你知道奶奶买回多少颗糖果？/h0i'A7k4V4x6|9j5X8l0L+Q0Z4s1i:K
算式：提示6Z6O;e8C8t/h0i'A7k4V4x6|9j5X8l0L+Q0Z4s1i:K
答： 奶奶买回/k*f4{3J2B4{,z颗糖果。/h0i'A7k4V4x6|9j5X8l0L+Q0Z4s1i:K