A-A+
列递等式计算.(1)78-35+18-25=(2)56÷710×57=(3)(1112-16
问题详情
列递等式计算.
(1)
(2)56÷
(3)(
(4)14×
(5)1
(6)
参考答案
(1)78-35+18-25
=78+18-(35+25)
=1-1
=0;
(2)56÷710×57
=56×107×57
=4007;
(3)(1112-16)÷118×13
=34×18×13
=92;
(4)14×1439-1439÷14
=14×1439-1439×114
=1439×(14-114)
=1439×19514
=5;
(5)119÷[3225-(32.4-13×0.25)]×12
=119÷[3225-(32.4-112)]×12
=119÷[3225-32.4+112]×12
=109×12×12
=160;
(6)2012-614×252+123÷416
=(2012-614×25)÷(2+123÷416)
=(2012-254×25)÷(2+53×625)
=(2012-212)÷(2+25)
=18×512
=152.
考点:等式