zài / zuò / jiā fǎ / shí / rú guǒ / mǒu yī wèi / xiāng jiā / mǎn shí / jiù / xū yào / jìn wèi在做加法时,如果某一位相加满十,就需要进位。When adding numbers, if a column sums to ten or more, you need to carry.