Number Systems

Place Values

1 Add and subtract place value

Writing Number Names

1 Write numbers in words up to \(12\)
2 Write numbers in words up to \(20\)
3 Write numbers in words up to \(199\)
4 Write numbers in words up to \(10,000\)
5 Write numbers in words up to \(100,000\)

Rounding

1 Rounding to the nearest \(10\)
2 Rounding to the nearest \(100\)
3 Rounding to the nearest \(1,000\)

Decimals

1 Introduction to decimals

Roman Numerals

1 Roman numerals, \(\mathrm{I},\) \(\mathrm{X},\) and \(\mathrm{C}\)
2 Roman numbers with addition and subtraction up to \(\mathrm{C}\)

Tally Marks

1 Tallies