2.4×9.8用简便方法计算

2.4×9.8用简便方法计算
2025-06-28 13:07:48
推荐回答(1个)
回答1:

2.4×9.8用简便方法计算
2.4×9.8
=2.4*(10-0.2)
=2.4*10-2.4*0.2
=24-0.48
=23.52