问题
解答题
计算下面各题,能简算的要简算.
(1)(6.8-5.4)×2.75-0.9
(2)3.8×5.6+4.4×3.8
(3)1.24×8.3+8.3×1.76
(4)88×0.25×9.
答案
(1)(6.8-5.4)×2.75-0.9,
=1.4×2.75-0.9,
=3.85-0.9,
=2.95;
(2)3.8×5.6+4.4×3.8,
=3.8×(5.6+4.4),
=3.8×10,
=38;
(3)1.24×8.3+8.3×1.76,
=(1.24+1.76)×8.3,
=3×8.3,
=24.9;
(4)88×0.25×9,
=22×9,
=198.