托式计算.
|
(1)1250+(5600-75×60),
=1250+(5600-4500),
=1250+1100,
=2350;
(2)64+992÷(426-394),
=64+992÷32,
=64+31,
=95;
(3)966÷(27+19)×45,
=966÷46×45,
=21×45,
=945;
(4)(1254-78×12)÷53,
=(1254-936)÷53,
=318÷53,
=6.
托式计算.
|
(1)1250+(5600-75×60),
=1250+(5600-4500),
=1250+1100,
=2350;
(2)64+992÷(426-394),
=64+992÷32,
=64+31,
=95;
(3)966÷(27+19)×45,
=966÷46×45,
=21×45,
=945;
(4)(1254-78×12)÷53,
=(1254-936)÷53,
=318÷53,
=6.