已知商店以7元的价格进一种文具，并以12元的价格卖出，问：如果商店卖出6个这样的文具，商店一共赚多少钱？
直接写出得数×= 1﹣=÷=（7+）×8= 0.1÷10%=×6= a﹣a= 12×（﹣+）=
计算．+=﹣=×=÷= 1.25××8= 1.2×= 20÷=（﹣）×30=﹣÷2= 99×÷99×=
直接写出复数．×= 1÷=÷8= 7×=×12=×=﹣=+=÷= 14÷=
直接写出得数． 0.56+0.25=﹣（﹣）= 0÷=（+）×6=+=×=8÷= 1+8%=
直接写结果﹣= 570÷×20=+3.5= 11﹣﹣=×= 1÷= 10﹣=÷= 19.9+19.9×99=
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