EASY (IER) KANJI - JLPT 4 KYUU

It looks like a 10 [] with a slanted line over it. Think of the line as adding an extra 00: 1000
1) sen, 2) chi - a thousand
一千円 issen en - 1000 yen [the ichi becomes 'iss' because it is easier to say than 'ichisen.' Also yen is pronounced 'en']
三千二百 san sen ni hyaku - 3,200
二千年 ni sen nen - the year 2000, 2 millennium