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1+20%= 1-40%= 200×1%= 50×3%=
0.75-75%= ×24= 15÷ =
× = ÷ = + ×8= 40%+25%=
÷ = 3.6× = ÷ × ×0= 42%× =
52= 25÷0.125÷8= × × =
1 ﹣0.6= 12×(1+0.8)= 50×30%×0=
= = = 1÷75%=
= = = =
= = = = =
= = 3.6÷20%= = =
÷14%=
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