一辆小朋友骑的三轮车有3个轮子,2辆这样的三轮车有多少个轮子?5_(e'P:I1G)R
算式:提示6y3n4{1`1j*|(n5_(e'P:I1G)R
答:2辆这样的三轮车有2u1Y'M7b(d4f4X个轮子。5_(e'P:I1G)R