Large Numbers & Operations — Chapter Test | Class 5 IMO

Q1

1 crore equals how many lakhs?

1 crore = 100 lakhs.

Q2

Which is the largest number?

1,00,00,000 (one crore) is the largest.

Q3

Which Roman numeral equals 40?

X before L means 50 − 10 = 40.

Q4

Round 6,49,000 to the nearest lakh.

The ten-thousands digit 4 is less than 5, so it rounds down to 6,00,000.

Q5

What is the place value of 8 in 8,12,34,567?

8 is in the Crores place, so its value is 8,00,00,000.

Q6

Write 29 in Roman numerals.

29 = 20 + 9 = XX + IX = XXIX.

Q7

What number is CM?

C before M means 1000 − 100 = 900.

Q8

Add: 23,45,000 + 11,55,000 = ?

23,45,000 + 11,55,000 = 35,00,000.

Q9

Subtract: 80,00,000 − 35,00,000 = ?

80,00,000 − 35,00,000 = 45,00,000.

Q10

A city has 12,50,000 people and another has 8,50,000. What is the total?

12,50,000 + 8,50,000 = 21,00,000.

Q11

A factory makes 1,25,000 units each month. How many in 4 months?

1,25,000 × 4 = 5,00,000.

Q12

₹96,00,000 is shared equally among 8 partners. How much does each get?

96,00,000 ÷ 8 = ₹12,00,000.

Q13

What is the smallest 8-digit number minus the largest 7-digit number?

1,00,00,000 − 99,99,999 = 1.

Q14

Write 444 in Roman numerals.

444 = 400 + 40 + 4 = CD + XL + IV = CDXLIV.