文档介绍：四年级下册数学计算题四(下)计算专练                           四则运算(-)班级         姓名       1、口算:11×70=     0×536=     34×5=      84×2=      35×30= 180×4=     19×6=      24÷12=     99÷11=     36÷18= 96÷6=      60÷12=     91÷13=     85÷17=     51÷17= 2、用递等式计算:17+83-25                                  41×3-76÷2       8×(54-49)-33                          284-27×4                    73-6×12+34                             81÷(21-12)×13         四(下)计算专练四则运算(二)班级            姓名            1、口算:15×80=      80×60=     101×40=      48×50=      17×20= 130×7=      75×2=      25×4=        52÷13=       74÷37=       54÷27=      100÷4=     86÷43=      60÷2÷5=     45×2÷9= 12÷3×4=    111×40≈    208×20≈     197×50≈   93×21≈ 2、用递等式计算:145÷5×6                           27+(18-12)×7      52-18×2+31                            125-15÷5       (75+25)×(43-36)                 120÷4-360÷4    四(下)计算专练四则运算(三)班级         姓名           1、口算:25×40=      104×4=     200×8=      12×50=     300×20= 21×7=      15×6=      13×4=        48÷12=     90÷30=       54÷27=     320÷4=     420÷21=      48÷2÷3=     30×2÷1= 12×3÷6=    482×20≈    751÷3≈     99×33≈   604÷60≈ 2、用递等式计算:6×(4×25)                             43×4-65×2                960÷5+56×20                          69÷3×(85-65)        (76+54)÷5                          168÷4+17×6        四(下)计算专练四则运算(四)班级          姓名        1、口算:15×80=      80×60=     101×40=      48×50=      17×20= 130×7=      75×2=      25×4=        52÷13=       74÷37=       54÷27=      100÷4=     86÷43=      60÷2÷5=     45×2÷9= 12÷3×4=    111×40≈    208×20≈     197×50≈   93×21≈ 2、用递等式计算:13×24÷12                          (119-8)÷3       (32-14)÷(36÷6)                 43×4-65×2        0×54+84÷3                        20+30×0-6    四(下)计算专练四则运算(五)班级         姓名        1、递等式计算:29×(3+9)                       36×13-552÷8   125-54÷9                          56÷(102-94)+126   0×(35÷7)+86                    (18-18)÷(18+18)   179-4×9÷6                         63+24÷8-2×3=75  2、把合适的数填在□里。□÷(54÷6)=8                   □÷