R s aggarwal solutions mathematics class 6 Solutions for Chapter 1 number system

Exercises in Chapter 1 number system Grade 6

Number System Exercise 1A

Number System Exercise 1B

Number System Exercise 1C

Number System Exercise 1D

Number System Exercise 1E

Number System Exercise 1F

Number System Exercise 1G

Number System Exercise 1H

Questions in Number System Exercise 1A

Fill in each of the following boxes with the correct symbol > or <:

1003467 ☐ 987965

Write the numeral for each of the following numbers:

(i)Nine thousand eighteen

(ii)Fifty- four thousand seventy-three

(iii)Three lakh two thousand five hundred six

(iv)Twenty lakh ten thousand eight

(v)Six crores five lakh fifty-seven

(vi)Two crores two lakh two thousand two hundred two

(vii)Twelve crores twelve lakh twelve thousand twelve

(viii)Fifteen crores fifty lakh twenty thousand sixty-eight

Write each of the following numbers in words:

(i)63,005 (ii)7,07,075 (iii)34,20,019

(iv)3,05,09,012 (v)5,10,03,604 (vi)6,18,05,008

(vii)19,09,09,900 (viii)6,15,30,807 (ix)6,60,60,060

Write each of the following numbers in expanded form:

(i)15,768 (ii)3,08,927 (iii)24,05,609

(iv)5,36,18,493 (v)6,06,06,006 (vi)9,10,10,510

Write the corresponding numeral for each of the following:

(i) 6 × 10000 + 2 × 1000 + 5 × 100 + 8 × 10 + 4 × 1

(ii) 5 × 100000 + 8 × 10000 + 1 × 1000 + 6 × 100 + 2 × 10 + 3 × 1

(iii) 2 × 10000000 + 5 × 100000 + 7 × 1000 + 9 × 100 + 5 × 1

(iv) 3 × 1000000 + 4 × 100000 + 6 × 1000 + 5 × 100 + 7 × 1

Find the difference between the place values of the two nines in 79520986.

Find the difference between the place value and face value of 7 in 27650934

How many 6-digit numbers are there in all?

How many 7-digit numbers are there in all?

How many thousands make a crore?

Questions in Number System Exercise 1B

Fill in each of the following boxes with the correct symbol > or <:

3572014 ☐ 10235401

Fill in each of the following boxes with the correct symbol > or <:

3254790 ☐ 3260152

Fill in each of the following boxes with the correct symbol > or <:

10357690 ☐ 11243567

Fill in each of the following boxes with the correct symbol > or <:

27596381 ☐ 7965412

Fill in each of the following boxes with the correct symbol > or <:

47893501 ☐ 47894021

Arrange the following numbers in descending order:

5032786, 23794206, 5032790, 23756819, 987876

Arrange the following numbers in descending order:

190909, 1808088, 16060666, 16007777, 181888, 1808090

Arrange the following numbers in descending order:

199988, 1704382, 200175, 1702497, 201200, 1712040

Arrange the following numbers in ascending order:

9873426, 24615019, 990357, 9874012, 24620010

Arrange the following numbers in ascending order:

56943201, 5694437, 56944000, 5695440, 56943300

Arrange the following numbers in ascending order:

700087, 8014257, 8015032, 10012458, 8014306

Arrange the following numbers in ascending order:

1020304, 893245, 980134, 1021403, 893425, 1020216

Questions in Number System Exercise 1C

The number of persons who visited the holy shrine of Mata Vaishno Devi during the last two

consecutive years was 13789509 and 12976498 respectively. How many persons visited the shrine

during these two years?

Last year, three sugar factories in a town produced 24809565 bags, 18738576 bags and 9564568

bags of sugar respectively. How many bags were produced by all the three factories during last

year

A number exceeds 37684955 by 3615045. What is that number?

There were three candidates in an election. They received 687905 votes, 495086 votes and 93756

votes respectively. The number of invalid votes was 13849. If 25467persons did not vote, find how

many votes were registered

A survey conducted on an Indian state shows that 1623564 people have only primary

education; 9768678 people have secondary education;6837954 people have higher education and

2684536 people are illiterate. If the number of children below the age of school admission is

698781, find the total population of the state.

In a particular year, a company produced 8765435 bicycles. The next year, the number of bicycles

produced was 1378689 more than those produced in the preceding year. How many bicycles were

produced during the second year? How many bicycles were produced during these two years?

Arrange the following numbers in descending order:

63521047, 7354206, 63514759, 7355014, 102345680

The sale receipt of a company during a year was ₹ 20956480. The next year; it increased by

₹ 6709570. What was the total sale receipt of the company during these two years?

The total population of a city is 28756304. If the number of males is 16987059, find the number

of females in the city.

By how much is 13246510 larger than 4658642?

By how much is 5643879 smaller than one crore?

What number must be subtracted from 11010101 to get 2635967?

The sum of the two numbers is 10750308. If one of them is 8967519, what is the other number?

A man had ₹ 20000000 with him. He spent ₹ 13607085 on buying a school building. How much money is left with him?

A society needed ₹ 18536000 to buy a property. It collected ₹ 7253840 as a membership fee, took a loan of ₹ 5675450 from a bank, and collected ₹ 2937680 as a donation. How much is society still short of?

A man had ₹ 10672540 with him. He gave ₹ 4836980 to his wife, ₹ 3964790 to his son, and the rest to his daughter. How much money was received by the daughter?

Questions in Number System Exercise 1D

Round each of the following numbers to the nearest ten:

(a) 36 (b) 173 (c) 3869 (d) 16378

Round each of the following numbers to the nearest hundred:

(a) 814 (b) 1254 (c) 43126 (d) 98165

Round each of the following numbers to the nearest thousand:

(a) 793 (b) 4826 (c) 16719 (d) 28394

Round each of the following numbers to the nearest ten thousand:

(a) 17514 (b) 26340 (c) 34890 (d) 272685