100题五年级小数乘法简便运算

(1)0.82×116-0.82×16 (2)12.5×5.5×8 (3)4.4×0.4×0.25





(4)0.25×0.39 (5)12.5×(80+8) (6)0.64×12.5





(7)6.4×12.5×2.5 (8)0.49×0.4×0.025 (9)2.5×(40+8)





(10)0.57+0.057×99 (11)64×12.5×2.5 (12)0.96×104-0.96×4





(13)6.4×12.5×0.025 (14)4×0.28×2.5 (15)0.25×41





(16)3.2×107-3.2×7 (17)9.8×85 (18)64×0.125×2.5





(19)1.25×(80+8) (20)0.032×99+0.32 (21)12.5×1.2×8





(22)2.5×39 (23)64×12.5×0.25 (24)0.25×0.37×0.4





(25)5.8×77+5.8×23 (26)0.24×2.5 (27)0.77×115-0.77×15





(28)4×0.91×0.025 (29)4×1.6×0.025 (30)0.49+0.49×99





(31)72×1.25 (32)64×1.25×2.5 (33)1.25+1.25×79





(34)0.4×0.64×0.025 (35)4×0.79×2.5 (36)2.3×98+2.3×2





(37)0.34×90+0.34×10 (38)4×9.9×0.025 (39)0.47×0.8×1.25





(40)0.31×93+0.31×7 (41)64×12.5×0.025 (42)0.054×102





(43)1.3×0.4×0.25 (44)0.86×8×12.5 (45)0.23+0.023×99





(46)0.016+0.016×99 (47)12.5×8.1 (48)4×0.75×0.25





(49)6.4×1.25×0.25 (50)12.5×79 (51)(4+0.8)×2.5





(52)9.9×4×0.025 (53)(80+8)×12.5 (54)8×4.4×0.125





(55)8×8.9×12.5 (56)0.29×(100-1) (57)1.25×0.81





(58)0.99×101 (59)3.8×4×0.25 (60)6.5×8×1.25





(61)0.047×102 (62)0.125×88 (63)1.25×0.57×8





(64)0.98×39 (65)8×0.67×0.125 (66)0.25×7.6×4





(67)1.25×8.8 (68)0.037×119-0.037×19 (69)0.16×0.25





(70)6.4×1.25×2.5 (71)4×4.8×2.5 (72)2.8×0.25





(73)9.9×21 (74)8×0.29×1.25 (75)2.5×1.6





(76)64×0.125×0.25 (77)0.79×(100+3) (78)0.125×56





(79)9.3×8×12.5 (80)12.5× 81-12.5 (81)0.057+0.57×99





(82)64×1.25×0.25 (83)0.26×117-0.26×17 (84)0.18×0.8×1.25





(85)0.99×85 (86)0.62×102-0.62×2 (87)8.3×99+8.3





(88)6.4×0.125×0.25 (89)0.4×8.1×0.25 (90)98×0.47





(91)3.2×1.25 (92)8×0.69×0.125 (93)12.5×(8+0.8)





(94)2.5×8.7×4 (95)40×1.25 (96)1.25×0.18×8





(97)(40+8)×0.25 (98)0.125×(8+0.8) (99)0.125×5.1×8





(100)4.5+0.045×99