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人教版五年级数学上册简便计算练习题
(小数加减乘除)
下列各题怎样算简便就怎样算:
(1)6.9+4.8+3.1 (2)0.456+6.22+3.78
(3)15.89+(6.75-5.89)
(5)5.17-1.8-3.2
(7)3.68+7.56-2.68
(9)35.6-1.8-15.6-7.2
(11)9.6+4.8-3.6
(4)4.02+5.4+0.98 (6)13.75-(3.75+6.48) (8)7.85+2.34-0.85+4.66 (10)3.82+2.9+0.18+9.1 (12)7.14-0.53-2.47 (13)13.35-4.68+2.65 (14)5.27+2.86-0.66+1.63
(15)73.8-1.64-13.8-5.36(16)47.8-7.45+8.8
(17)0.398+0.36+3.64
(19)66.86-8.66-1.34
(21)(1.25-0.125)×8
(23)3.72×3.5+6.28×3.5
(254.8×7.8+78×0.52
(27)32+4.9-0.9
(18)15.75+3.59-0.59+14.25 (20)0.25×16.2×4 (22)3.6×102 (24)36.8-3.9-6.1
(26)15.6×13.1-15.6-15.6×2.1 (28)4.8×100.1 (29)56.5×9.9+56.5 (30)7.09×10.8-0.8×7.09
(31)25.48-(9.4-0.52) (32) 4.2÷3.5
(33)320÷1.25÷8 (34)18.76×9.9+18.76
(35)3.52÷2.5÷0.4 (36)3.9-4.1+6.1-5.9
(37)5.6÷3.5 (38)9.6÷0.8÷0.4
(39)4.2×99+4.2 (40)17.8÷(1.78×4)
(41)0.49÷1.4 (42)1.25×2.5×32
(43)3.65×10.1 (44)15.2÷0.25÷4
(45)0.89×100.1 (46)146.5-(23+46.5)
(47)3.83×4.56+3.83×5.44(48) 4.36×12.5×8
(49)9.7×99+9.7 (50)27.5×3.7-7.5×3.7
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