问题
解答题
脱式计算.(能简算的要简算)
|
答案
(1)29+12÷45+38,
=29+
+38,4 15
=29
+38,4 15
=67
;4 15
(2)813÷7+17×6,
=116
+102,1 7
=218
;1 7
(3)132-613÷926-23,
=132-
-23,613 926
=132-23-
,613 926
=109-
,613 926
=108
;313 926
(4)125×(56+34)+45,
=125×90+45,
=11250+45,
=11295.