241 四年级数学专项练习系列一之练习32

241 四年级数学专项练习系列一之练习32

递等式计算,能巧算的要巧算

26×39+61×26                          356×9-56×9                                    99×55+55

78×101-78                              52×76+47×76+76                           134×56-134+45×134

48×52×2-4×48                         25×(40+4)                                       999×999+999

380+476+120                           (569+468)+(432+131)                    39×25

256-147-53                               373-129+29                                     189-(89+74)

79×125                                     28×4×25                                          125×32×25

(13×125)×(3×8)                       75×99+2×75                                          7300÷25÷4

(2130+783+270)+1017            7755-(2187+755)                            4×(25×65+25×28)

999×99                                     75×27+19×25                                 31×870+13×310

129×101-129                            149×69-149+149×32                      50×(34×4)×3

25×32×125                             (13×125)×(3×8)                              4×(25×65+25×28)

404×25                                     88×125                                            3900÷(39×25)

420÷(5×7)                                     (375+1034)+(966+125)                         456-(256-36)

2357-183-317-357                          75×99+2×75                               4×(25×76)

444×664+168×888                (26+26+26+26)×25                    4×(25×36+25×164)

(6180+1500)÷(48×5)                     78×33+33×21+33                       78×20-858÷22

[408÷(36-12)×8]÷15                    102×33                   1532-(682+532)-18

29×[3328÷(32×105-3328)]          4532-228+72                          821-21×(40-28)

821-(21×40-28)                               400÷(l00÷25)×4                  400÷(100÷25×4)

1800÷(127-27)×2                          56×47+79×137                        38×(209-87+29)

960÷16+15×23                     50×125×200×8                                      (650+350)÷125×9

365-(65+118)                       455-(155+230)                         125×[920÷(750-727)]

[408+(36-12)×8]÷l5              1800÷[(127-27)×2]                         (144+96÷16)×(44-18)

75×[(626-185)÷9]                   [1178-12×(84+5)]÷5                            620+2592÷36×11

(1850+1690)÷(47+12)            (6180+1500)÷(48×5)                      128×33-33×28

78×20-858÷22                        [408+(36-12)×8]÷15                        1532-(682+532)-18

425+178+375+222                  27×(143+67)+210×73                      3359-329-271

7820-22×(78-59)                      7820-(22×78-59)                           1600÷(100÷25)×4

1600÷(100÷25×4)                125×[920÷(750-727)]          29×[3328÷(32×105-3328)]

2310÷[235-160÷(l3+27)       85×37+37×15                 2070÷[(1804-274)÷17]

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