Write the predecessor of the smallest 5 digit number. Write the following Roman numerals in Hindu-Arabic numerals. Write the following Hindu-Arabic numerals in Roman numerals. Fill in the blanks.

The smallest 5-digit number is 10000.

The predecessor is the number immediately before it.

The predecessor of the smallest 5-digit number is $\boxed{\text{9999}}$.

Q1. Write the following Roman numerals in Hindu-Arabic numerals.

• a) IX = $\boxed{\text{9}}$
• b) XIV = $\boxed{\text{14}}$
• c) XX = $\boxed{\text{20}}$
• d) XXVII = $\boxed{\text{27}}$
• e) XXX = $\boxed{\text{30}}$
• f) XL = $\boxed{\text{40}}$
• g) XLV = $\boxed{\text{45}}$
• h) XIX = $\boxed{\text{19}}$
• i) XXXVIII = $\boxed{\text{38}}$
• j) XLIX = $\boxed{\text{49}}$

Q2. Write the following Hindu-Arabic numerals in Roman numerals.

• a) 5 = $\boxed{\text{V}}$
• b) 12 = $\boxed{\text{XII}}$
• c) 18 = $\boxed{\text{XVIII}}$
• d) 24 = $\boxed{\text{XXIV}}$
• e) 29 = $\boxed{\text{XXIX}}$
• f) 31 = $\boxed{\text{XXXI}}$
• g) 36 = $\boxed{\text{XXXVI}}$
• h) 44 = $\boxed{\text{XLIV}}$
• i) 47 = $\boxed{\text{XLVII}}$
• j) 50 = $\boxed{\text{L}}$

Q3. Fill in the blanks.

• a) We cannot repeat any roman number more than $\boxed{\text{three}}$ times.
• b) Roman numeral for 0 $\boxed{\text{is not available}}$.
• c) Only $\boxed{\text{I}}$, $\boxed{\text{X}}$, $\boxed{\text{C}}$, and $\boxed{\text{M}}$ can be repeated.
• d) XL means $\boxed{\text{40}}$.
• e) Roman numeral for 49 is $\boxed{\text{XLIX}}$.
• f) XX + X = $\boxed{\text{XXX}}$
• g) Roman numeral for 19 is $\boxed{\text{XIX}}$.
• h) $\boxed{\text{XXXV}}$ is the Roman numeral for 35.

Q4. Write the predecessor and successor of the following Roman numerals.

• a) IX (9): Predecessor = $\boxed{\text{VIII}}$ (8), Successor = $\boxed{\text{X}}$ (10)
• b) XV (15): Predecessor = $\boxed{\text{XIV}}$ (14), Successor = $\boxed{\text{XVI}}$ (16)
• c) XXIX (29): Predecessor = $\boxed{\text{XXVIII}}$ (28), Successor = $\boxed{\text{XXX}}$ (30)
• d) XXXIV (34): Predecessor = $\boxed{\text{XXXIII}}$ (33), Successor = $\boxed{\text{XXXV}}$ (35)
• e) XLVIII (48): Predecessor = $\boxed{\text{XLVII}}$ (47), Successor = $\boxed{\text{XLIX}}$ (49)
• f) XVI (16): Predecessor = $\boxed{\text{XV}}$ (15), Successor = $\boxed{\text{XVII}}$ (17)
• g) XXX (30): Predecessor = $\boxed{\text{XXIX}}$ (29), Successor = $\boxed{\text{XXXI}}$ (31)
• h) XL (40): Predecessor = $\boxed{\text{XXXIX}}$ (39), Successor = $\boxed{\text{XLI}}$ (41)
• i) XIX (19): Predecessor = $\boxed{\text{XVIII}}$ (18), Successor = $\boxed{\text{XX}}$ (20)

Q5. Compare the Roman numerals using >, < or =.

• a) X (10) $\boxed{<}$ XV (15)
• b) XX (20) $\boxed{>}$ XIX (19)
• c) XL (40) $\boxed{<}$ L (50)
• d) XXV (25) $\boxed{=}$ XXV (25)
• e) IX (9) $\boxed{<}$ XI (11)
• f) XXXII (32) $\boxed{>}$ XXX (30)