问题
解答题
简算(写出简算的主要过程)
|
答案
(1)97
×1 95 1 96
=(96+
)×96 95 1 96
=96×
+1 96
×96 95 1 96
=1+1 95
=1
;1 95
(2)675×1.4+
×63 5
-6.753 4
=6.75×140+0.6×6.75-6.75
=6.75×(140+0.6-1)
=6.75×139.6
=942.3;
(3)12
×41 2
+125×0.26+1.25×321 5
=12.5×4.2+12.5×2.6+12.5×3.2
=12.5×(4.2+2.6+3.2)
=12.5×10
=125.