问题
解答题
计算下面各题,能简算的要简算.
8.4×0.26+0.745.5×17.3+6.7×5.5.
答案
(1)8.4×0.26+0.74,
=2.184+0.74,
=2.924;
(2)5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=5.5×(20+4),
=5.5×20+5.5×4,
=110+22,
=132.
计算下面各题,能简算的要简算.
8.4×0.26+0.745.5×17.3+6.7×5.5.
(1)8.4×0.26+0.74,
=2.184+0.74,
=2.924;
(2)5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=5.5×(20+4),
=5.5×20+5.5×4,
=110+22,
=132.