2x1,000+3x10+4x1/10+3x1/100 in base ten numeral form

What is the last digit or units digit of 250 when written in standard form?

Write the roman numeral as a hindu arabic numeral

Express the expanded form as a Hindu-Arabic numeral. (8 x 108) + (2 x 104) + (7 x1) 80,020,007 8,002,007 800,020,007 80,002,007