qian 千 qiān a thousand

wan 万 wàn ten thousand, very very many

liang 两 liǎng 2, two
usually used in place of er 二 èr when expressing two of something, a couple of.... 两个...

jiu 九 jiǔ nine, 9

si 四 sì four, 4

san 三 sān three, 3

ba 跋 bá travel, walk
postscript

er 二 èr 2, two

bai 百 bǎi 100, hundred

qi 七 qī 7, seven