= = = =3.14×5= = = == =
26×49+26．
用简便方法计算：24.6×4.6+246×0.44+24.6．
①25.74﹣2.36﹣7.64 ②0.75×0.25×4 ③8.4÷0.25÷4④2.8×3.6+1.4×2.8．
96×101．
48×201．
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