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五年级上册数学 期末计算题提升练习
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2023-12-26
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五年级上册数学 期末计算题提升练习


简介：
(1) 6.5×102 =6.5×(100+2) =6.5×100+6.5×2 =650+13 =663 (2) 1.25+4.6+0.75 =(1.25+0.75)+4.6 =2+4.6 =6.6 (3)6.1×3.6+3.6×3.9 =3.6×(6.1+3.9) =3.6×10 =36 (4) 5.1×4.6+5.9×4.6-4.6 =4.6×(5.1+5.9-1) =4.6×10 =46 (5)1.25×8.8 =1.25×(8×1.1) =1.25×8×1.1 =10×1.1 =11 (6)56×1.25 =7×(8×1.25) =7×10 =70 (7)4×3.09×0.25 =4×0.25×3.09 =1×3.09 =3.09 (8)5.97×1.8-0.8×5.97 =5.97×(1.8-0.8) =5.97×1 =5.97