问题
解答题
脱式计算,能简算的要简算.
|
答案
(1)27×34-514,
=918-514,
=404;
(2)25×(40+4),
=25×40+25×4,
=1000+100,
=1100;
(3)4864÷8×7,
=608×7,
=4256;
(4)56×99﹢56,
=56×(99+1),
=56×100,
=5600.
脱式计算,能简算的要简算.
|
(1)27×34-514,
=918-514,
=404;
(2)25×(40+4),
=25×40+25×4,
=1000+100,
=1100;
(3)4864÷8×7,
=608×7,
=4256;
(4)56×99﹢56,
=56×(99+1),
=56×100,
=5600.