0.8×(3.2-2.99÷2.3)简便

2025-05-09 20:48:54
推荐回答(1个)
回答1:

0.8×(3.2-2.99÷2.3)
=0.8×(3.2-1.3)
=0.8×1.9
=0.8×(2-0.1)
=1.6-0.08
=1.52