28÷7=34÷6=7×8=45+165=
直接写出得数 8×= 7÷=+=×= 100×= 95×101= ﹣1.25=1 1× =1 0.125×（×8）=（4×）÷（4×）=
脱口而出 205+76= 6.75+2= 1000÷999= 0.125×8====（）×8=
直接写出得数+=÷= 12×=×= 21÷﹣84=﹣×= 10﹣=×÷×=+÷2=+×=
直接写得数．×0×17=÷4÷=÷= 57×=﹣+=××= 1÷=（6+）×=﹣=+=
4÷=×6÷= 6×+6×=×= （+）×16= 1÷=×= 24%×5=
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