1. Practice and Review

2. 9 __ 9 = ___
9 + 9 =
9 − 9 =
9 × 9 =
9 ÷ 9 = 18 81 1

3. 12 __ 4 = ___ =
12 − 4 =
12 × 4 =
12 ÷ 4 = 16 8 48 3

4. 20 __ 10 = ___ =
20 − 10 =
20 × 10 =
20 ÷ 10 = 30 10
200 2

5. XXIX 29 LI 51
DCCXLVII
747

6. Arabic Numerals 1 2 3 4 5 6 7 8 9

7. XII I XI X II IX
III
VIII IV
VII V VI

8. I =
V =
X =
L =
C = 1 5 10 50
100

9. Roman Numeral Rules
1. The symbol for 1, 10, or 100 should be used no more than 3 times in a row.
VIII
= 8 because
5 + 3 = 8
VIIII

10. Roman Numeral Rules
2. When a lesser symbol (I, X, or C) comes before a greater symbol, the lesser symbol is subtracted from the greater symbol.
IX = 9 because 10 − 1 = 9

11. Roman Numeral Rules
3. When a lesser symbol comes after a greater symbol, the lesser symbol is added to the greater symbol.
VI = 6 because = 6

12. 1 I 2 II 3
III 4 IV 5 V
IIII 6 VI 7
VII 8
VIII 9 IX 10 X

13. Standard form
Expanded form
Roman numeral 11
10 + 1 XI 15
10 + 5 XV 19
10 + 9
XIX

14. Standard form
Expanded form
Roman numeral 15
10 + 5 XV 19
10 + 9
XIX 11
10 + 1 XI 15
10 + 5 XV 19
10 + 9
XIX 34
30 + 4
XXXIV

15. Standard form
Expanded form
Roman numeral 34
30 + 4
XXXIV 15
10 + 5 XV 19
10 + 9
XIX 57
50 + 7
LVII

16. IV
XIV
XXIV
XXXIV
XLIV
LIV
LXIV
LXXIV
LXXXIV
XCIV 4 14 24 34 44 54 64 74 84 94 IX
XIX
XXIX
XXXIX
XLIX
LIX
LXIX
LXXIX
LXXXIX
XCIX 9 19 29 39 49 59 69 79 89 99 40 XL XC 90

17. 1 47 40 + 7 XLVII Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
40 + 7
XLVII

18. 1 29 20 + 9 XXIX Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
20 + 9
40 + 7
XLVII
XXIX

19. 1 14 10 + 4 XIV Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
10 + 4
40 + 7
XLVII
20 + 9
XXIX
XIV

20. 1 82 80 + 2 LXXXII Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
80 + 2
40 + 7
XLVII
20 + 9
XXIX
10 + 4
XIV
LXXXII

21. 1 64 60 + 4 LXIV Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
60 + 4
40 + 7
XLVII
20 + 9
XXIX
10 + 4
XIV
80 + 2
LXXXII
LXIV

22. 1 38 30 + 8 XXXVIII Standard form 38 64 82 14 29 47 Expanded form
Roman numeral
30 + 8
40 + 7
XLVII
20 + 9
XXIX
10 + 4
XIV
80 + 2
LXXXII
60 + 4
LXIV
XXXVIII

23. Write in Roman numerals the score for Super Bowl XLIII. XXVII–XXIII
Write in Roman numerals the difference in the score for Super Bowl XX.
XXXVI 2 3

24. Write in standard form the Super Bowl number for 2009.4
Write in standard form the Super Bowl number for 2009. 43

25. Write the Roman numerals for the San Francisco team’s name.
List in standard form the Super Bowl numbers that the Pittsburgh Steelers won.
9, 10, 13, 14, 40, 43
Write the Roman numerals for the San Francisco team’s name. 5 6
XLIX

26. How many teams won back-to-back years? 5 teams
Which team won the most recent Super Bowl listed?
Pittsburgh Steelers 7 8

27. Pittsburgh Steelers; 34; XXXIV
Which team has the most number of years between the first time it won a Super Bowl and the last time it won? Write that number in standard form and in Roman numerals.
Pittsburgh Steelers; 34; XXXIV 9