Characters
Pinyin
English
What's the Problem
Numbers
100

Ge; Measure word for many things including people

100

You

有; To have

100

Few or less

少; shao

100

Wo you san ge gou; 我有三个够

They used the wrong measure word (zhi should be used instead of ge)

100

Si; 四

200

Sui; Years old 

200

Mei Mei

没没; little sister

200

How many (10 and under) 

几个; ji ge

200

Wo you er zhi mao; 我有二只猫

They should use liang instead of er if you have two of something

200

Shi

10; 十

300

Duo; many or more 

300

Xiao

小; small

300

And 

和; He

300

Wo shi shi san sui; 我是十三岁

You do not need a shi when saying your age ( Wo shi san sui)

300

十二

12; shi er

400

Liang; Word used for er if you have two of something

400

Xiong 

胸; formal way to say Ge Ge or Older brother

400

Word that indicates a change (no version of it in English) 

了; le

400

Duo shao ren ni de jia you?; 多少人你的家有

Wrong sentence structure.  It should be your family has how many people, not how many people your family has.

400

49

四十九; si shi jiu

500

你多大?

Ni duo da?; How old are you 11+

500

Wo you liang ge mu。

我有两个木。; I have 2 trees.

500

I have a small cat and 3 dogs.

我有一只小猫和三只狗。; wo you yi zhi xiao mao he san zhi gou。

500

Ni you mao mei you mao?; 你有毛没有毛?

It is you have not have cat, not you have cat not have cat.

500

Bai; 100