1个花瓶里放7枝花,4个花瓶一共有多少枝花?5M1i7f/_:Q0W*u;T4H)?
算式:提示,];b(u*P4t6D/H-A3E/},O5M1i7f/_:Q0W*u;T4H)?
答;4个花瓶一共有9w)y,o1^1Y7@0a6j枝花.5M1i7f/_:Q0W*u;T4H)?