脱式计算,能简便的要用简便方法计算.0.36×1.5×0.4 0.05×3.2×40 26×15.7+15.7×74 3.78×0.5-

2025-04-07 05:52:37
推荐回答(1个)
回答1:

(1)0.36×1.5×0.4,
=0.36×(1.5×0.4),
=0.36×0.6,
=0.216;

(2)0.05×3.2×40,
=(0.05×40)×3.2,
=2×3.2
=6.4;

(3)26×15.7+15.7×74,
=(26+74)×15.7,
=100×15.7,
=1570;

(4)3.78×0.5-0.65,
=1.89-0.65,
=1.24;

(5)3.98+13.4×0.24,
=3.98+3.216,
=7.196;

(6)(9.37+9.37+9.37+9.37)×2.5,
=9.37×4×2.5,
=9.37×(4×2.5),
=9.37×10,
=93.7.