Page 25 - Maths Skill - 3

4-digit Numbers 23

To the Nearest Hundred

� If the digit at tens place is less than 5, round off the number to the same hundreds.

� If the digit at tens place is greater than or equal to 5, round off the number to the
next hundreds.

Let’s Attempt

Example 1: Round off 134 to the nearest hundred.

Solution: 134

100 110 120 130 140 150 160 170 180 190 200

134 is nearer to 100 than 200. Thus, it is rounded off to 100.

Example 2: Round off 267 to the nearest hundred.

Solution: 267

200 210 220 230 240 250 260 270 280 290 300

267 is nearer to 300 than 200. Thus, it is rounded off to 300.

Exercise 2.8

1. Round off to the nearest ten.

(a) 65 _____________ (b) 43 _____________ (c) 26 _____________

(d) 24 _____________ (e) 89 _____________ (f) 78 _____________

2. Round off to the nearest hundred.
(a) 213 __________ (b) 347 __________ (c) 854 __________

(d) 567 __________ (e) 437 __________ (f) 739 __________

Roman Numbers
We have used the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 to write any number. This is known

as Hindu-Arabic number system.
There is another system of numbers in which ‘letters’ of English alphabet are used to
write numbers. This system is called Roman System of numeration.

Roman Numerals I V X L C D M

Hindu-Arabic Numerals 1 5 10 50 100 500 1000