7.83*9.8+0.783*2怎么简便计算

2025-03-18 07:58:17
推荐回答(3个)
回答1:

7.83x9.8+7.83x0.2
=7.83x(9.8+0.2)
=78.3

回答2:

7.83×9.8+0.783×2
7.83×9.8+7.83×0.2
=7.83×(9.8+0.2)
=7.83×10
=78.3

回答3: