小强有56张邮票,小芳的邮票数是小强的2倍,他们一共有多少张邮票?
直接写出答案= = = == = = =
×=÷6=
直接写得数÷7= 42×= 6÷= ×33=÷= += 10÷1%= ﹣20%=﹣= 24×50%=
直接写出得数.= 15= = =0.33= = = =1﹣= = = =
×= 1÷= 4×60%= 0.875÷0.125=÷2= 10÷= ×3.6= 0×=