84.42 or 42.21
12.36 1 = tens 2 = units/ones 3 = tenths 6 = hundredths
2 units5 tens3 tenths5 hundredths1 thousandths
3215025
9 tens, 8 hundredths, and 3 tenths expanded is 9.83 9.83 + 34.53= 44.36.
30.09 . unless not tens but tenths is meant 3 tenths and 9 hundredths = 0.39
42.21 or 84.42
84.42 or 42.21
It refers to counting in units and tens, multiples of tens (such as hundreds, thousands and so on), and fractions of tens (such as tenths, hundredths and so on).
12.36 1 = tens 2 = units/ones 3 = tenths 6 = hundredths
2 units5 tens3 tenths5 hundredths1 thousandths
8 tenths, 6 hundredths
31.82
3215025
It is 4,008,0A6.95
The place value columns are: hundreds, tens, units, <decimal point>, tenths, hundredths, thousandths → 9 is nine hundreds = nine hundred → 8 is eight tens = eighty → 7 is seven units = seven → 6 is six tenths → 5 is five hundredths → 4 is four thousandths
9 tens, 8 hundredths, and 3 tenths expanded is 9.83 9.83 + 34.53= 44.36.