5 sentences

1. 他岁数大了，记性不太好。

   tā suì​shu dà le, jì​xing bù tài hǎo.

   He is getting on in years and his memory isn't very good.

   Source: Dong Chinese Dictionary

2. 您父母多大岁数了？

   nín fù​mǔ duō dà suì​shu le?

   How old are your parents?

   Source: Tatoeba

3. 你比我岁数大。

   nǐ bǐ wǒ suì​shu dà.

   You're older than me.

   Source: OpenSubtitles

4. 您还记得您今年多大岁数吗？

   nín hái jì​de nín jīn​nián duō dà suì​shu ma?

   Do you remember how old you are?

   Source: OpenSubtitles

5. 别看他岁数大了，但走起路来很有精气神。

   bié kàn tā suì​shu dà le, dàn zǒu qǐ lù lái hěn yǒu jīng​qì​shén.

   Even though he is old, he still has a lot of energy and spirit when he walks.

   Source: Dong Chinese Dictionary