动物园有12只大猴子，8只小猴，大猴比小猴多多少只？大猴和小猴一共多少只？3]:Y1]/f3v
算式：提示6~:O8v3[5a,A5I.[/i5K6m2b3]:Y1]/f3v
答：大猴比小猴多;n:t:u0f0F-i只。3]:Y1]/f3v
算式：提示5r3s8i5`.|1s1N8C/n:t,N,F*e1L3]:Y1]/f3v
答：大猴和小猴一共1Z-E/r6X(_;f1H7A1G1e8m8K只。3]:Y1]/f3v