脱式计算.560+40-30×15[296+(84-12)]×517×(35+480÷6)270÷[18×(51-46)]

2025-01-06 23:22:03
推荐回答(1个)
回答1:

(1)560+40-30×15
=560+40-450
=600-450
=150;

(2)[296+(84-12)]×5
=[296+72]×5
=368×5
=1840;

(3)17×(35+480÷6)
=17×(35+80)
=17×115
=1955;

(4)270÷[18×(51-46)]
=270÷[18×5]
=270÷90
=3.