1.520 red envelope: to express love for mother.
2. 13 14 red envelope: happy mother's day.
3.666 Red envelopes: express the mother's smooth interests.
4.888 Red envelopes: express the mother's financial resources.
5.999 red envelope: express mother's health and longevity.
6. 1666 red envelope: it means that the mother has a smooth sailing.
7. 1688 red envelope: to express the meaning of mother's hair all the way.
8. 1999 red envelope: to express mother's health and longevity.
The above is for reference only. You can decide how many red envelopes to send according to your actual situation. Most importantly, don't let gifts or red envelopes become the only criterion for measuring love. Sincere care and companionship are the most important.