[P1] Express a 2-digit Number in terms of Tens and Ones

20 = ___ tens

5 ones = ___

3 tens 8 ones = ___

79 = ___ tens 9 ones

82 = ___ + 2

4 tens 3 ones = ___

100 = ___ tens

31 = 30 + ___

29 = ___ tens + 9 ones

67 = ___ + 7