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6. Candidate A got 60,008 votes, candidate B got 50,352 votes and candidate C got
78,980 votes in an election. Can you tell who is the winner of the election and by
how many votes the candidate won the election? CompetenCy-Based Question

7. A ship has to travel a distance of 12,600 km between two major cities. The
journey was divided into four parts. The ship travelled 2,450 km in the first part,
3,500 km in the second part and 2,700 km in the third part. How much distance
did the ship need to cover in the fourth part to complete the journey?

8. Radhika’s monthly income is `59,089 and Mohan’s monthly income is `75,830.
What is the difference between their monthly incomes?
9. An NGO working on the education of poor children needs to raise funds of

`50,000 for stationeries. So far they collected `18,750. How much money are
they short off?

Mental Maths

1. Fill in the blanks.
(a) 5000 + 8 + 18 = __________. (b) 6567 + 9845 + 372 = __________.

(c) 8 ten thousands + 5 thousands + 15 hundreds + 12 tens = __________.
(d) The difference between 8095 and 3002 is __________.
2. tick the two numbers that add up to the number in the centre of each rectangle.
(a) 5555 (b) 98989

10000 55555 45555 800000 898989 88888

35555 900000

maths fun
The number 6174 is known as Kaprekar’s constant after the Indian
Mathematician D.R. Kaprekar. This number is renowned for the
following rule:
Take any four-digit number, using at least two different digits (leading zeros are allowed).
Arrange the digits in descending and then in ascending order to get two four-
digit numbers, adding leading zeros if necessary.
Subtract the smaller number from the bigger number.
Go back to the second step and repeat.
For example, let us take 1542.
Rearrange the digits and subtract: 5421 – 1245 = 4176
Repeat it again: 7641 – 1467 = 6174
7641 – 1467 = 6174 ← Kaprekar’s Constant
Check it with other numbers.

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