脱式计算(能简算的要简算,没简算的不给分).1.6×55.4-55.4×0.6-55.4 17.68÷5.2+2.7×1.5 4.8

2025-02-23 19:55:45
推荐回答(1个)
回答1:

(1)1.6×55.4-55.4×0.6-55.4,
=(1.6-0.6-1)×55.4,
=0×55.4,
=0;

(2)17.68÷5.2+2.7×1.5,
=3.4+4.05,
=7.45;

(3)4.8×0.25,
=(1.2×4)×0.25,
=1.2×(4×0.25),
=1.2×1,
=1.2.