问题
解答题
计算下面各题,能简算的就简算.
|
答案
(1)4.67-(2.98+0.67)
=4.67-2.98-0.67
=4.67-0.67-2.98
=4-2.98
=1.02;
(2)1.25×0.4×0.25×8
=(1.25×8)×(0.4×0.25)
=10×0.1
=1;
(3)2013×2011 2012
=(2012+1)×2011 2012
=2012×
+1×2011 2012 2011 2012
=2011+2011 2012
=2011
;2011 2012
(4)14.35÷3.5÷2
=14.35÷(3.5×2)
=14.35÷7
=2.05;
(5)
×24+76×2 5 2 5
=
×(24+76)2 5
=
×1002 5
=40;
(6)(
+7 12
)×243 8
=
×24+7 12
×243 8
=14+9
=23.