Question

Q1. Round off the following numbers to the nearest 10.
(a) 649
(b) 18,463
(c) 7,53,496
(d) 12,18,955
Q2. Round off the following numbers to the nearest 100.
(a) 33,400 (b) 62,563 (c) 1,92,220 (d) 73,508
Q3. Round off the following numbers to the nearest 1000.
(a) 63,525 (b) 99,325 (c) 1,84,980
(d) 30,840​

Answer 1

Answer:

650 ,18460, 75 350, 12 19000

33400 ,62 600 ,19 2200 ,73500

64000 ,99000 ,185000 ,31000

Answer 2

Step-by-step explanation:

Q1. if the unit digit of any number is greater than 5 or equal to 5 it will be changed to next 10 for example- a) 649 the unit digit is greater than 5 so it will be converted to 650 if not it will be converted its earlier tens for ex- b) 18 463 = 18460

Q2. and the same process is done in hundred round off. if the last two digits are equal to 50 or more than 50 it will be converted to next hundered if not so it will be converted to earlier hundred.

Q.3 in this we will take 500 as base value and do the same process that is done in tens and hundreds.

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