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Published on: 14/09/2019
Knowing our Numbers
Download CBSE Class 6th Standard CBSE Mathematics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 6th Standard CBSE Mathematics
Questions + Answers key
Take MCQ Mathematics Test
1.
XXXX, VX, IC, XVV are not written. Can you tell why?
2.
Make as many 4-digit numbers as you can from the given four digits 7, 8, 3, 5.
3.
Write the smallest 8-digit number having four different digits.
4.
Write the following in Hindu-Arabic numeral XLVI
5.
Write the following in Hindu-Arabic numeral XXIV
6.
Estimate (673 - 528)
7.
Estimate the following using general rule 28,292 - 21,496
8.
Estimate the following using general rule 12,904 + 2888
9.
Round off these numbers to the nearest thousands 2936
10.
A merchant had Rs.24642. He placed an order for purchasing 20 radio sets at Rs. 1150. How much money will remain with him after purchase?
11.
What is the place value of 6 in 65489203?
12.
Using the digits 2, 3, 9, 6, write the smallest four-digit number.
13.
Whatis 100- 1=?
14.
What is 10- 1=?
15.
Can you instantly find the greatest and the smallest numbers in the row? 1834, 75284, 111, 2333, 450.
1.
XXXX is not written because a symbol is not repeated more than three times; VX is not written because V is never subtracted; IC is not written because I can be subtracted from V and X only ; XVV is not written because V is never repeated.
2.
All the 4-digit numbers that can be formed from the given four digits 7, 8, 3, 5 are as follows:
7835, 7853, 7358, 7385, 7583, 7538, 8735, 8753, 8357, 8375, 8573, 8537, 3578, 3587, 3785, 3758, 3857, 3875, 5783, 5738, 5837, 5873, 5378, 5387.
3.
10000023
4.
XLVI =(50 -10) + 5 + 1 = 46
5.
XXIV = 20+ (5-1) = 24
6.
200
7.
∵ 28,292 ⟶ 28,000[rounding off to nearest thousands]
21,496 ⟶ 21,000 [rounding off to nearest thousands]
∴ Estimated difference = 28000 - 21000 = 7000
8.
∵12904 ⟶ 13000[rounding off to nearest thousands]
2888 ⟶ 3000 [rounding off to nearest thousands]
∴ Estimated sum = 13000 + 3000 = 16000
9.
Given number is 2936. Here, hundred digit is 9, which is more than 5 i.e. 9 > 5.
∴ The required rounded number 2936 = 3000
10.
Rs.1642
11.
6 \(\times\) 107 or 60000000
12.
2369
13.
100 - 1= 99
14.
10 - 1 = 9
15.
75284 is the greatest number, because it has highest number of digits i.e. 5 and III is the smallest number, because it has least number of digits i.e. 3.
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CBSE 6th Standard CBSE Subjects
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