Knowing our numbers, Whole numbers and Playing with numbers

Which is the only even prime number?

• 3

• 1

• 2

• 5

How many prime numbers are there between 1 and 100?

• 21

• 25

• 24

• 23

How many milimetres make 1 kilometre?

• 10,00,000 mm

• 1,00,000 mm

• 1,000 mm

• 1,00,00,000 mm

Which is the smallest whole number?

• 1

• 2

• 4

• 0

1 million = (a)   lakh.

(a)   is a factor of every number.

The smallest composite number is (a)   .

Numbers having more than two factors are called (a)   .

The place value of 8 in 722,08,001 is (a)   .

The Roman numeral of 98 is (a)   .