和,用 meaning in Chinese
with
Examples
- Compare problems 2 & 3 with problem 1 . what parts are known in problems 2 & 3 ? and what are we trying to find out ? please discuss with your partners
让学生讨论后,说出:第( 1 )题是已知两个加数,求它们的和,用加法计算。第( 2 ) 、 ( 3 )题是已知两个数的和与其中的一个加数,求另一个加数,用减法计算。