Std 3 SCERT Maths [Lesson 1 Hundred and Above]
Lesson 1
Hundred and Above
Study of
mathematics is the
study of the
numbers. If the
mathematics is a
language, the nubers
are its alphabets.
The most important
use of numbers is
counting. The
numbers 1, 2, 3 ...
are called counting
numbers. Counting
numbers are formed
by using the digits
0,1,2,3,4,5,6,7,8,9.
When we insert a
digit in a number
that digit get a
value.
Place Value
The value depending
of the place of the
digit is called place
value. The same
digit can have
different place
value,according to
its place or position
in the number.
Example: The
number [52] place
value of '5' is ten.
The number[25]
place value of '5' is
one.
9/6/2021
Write down the next six continuous numbers
1)515,➖,➖,➖,➖,➖
2) 721,➖,➖,➖,➖,➖
3) 919,➖,➖,➖,➖,➖
write the following
numbers in words
1)249 - Two hundred forty nine
2)900-
3) 120-
4) 786-
5) 844-
Write the following numbers in figures
1) Six hundred forty three-643
2) eight handred nine-
3) Nine hundred ninety-
4) Four hundred forty four-
Write the numbers which come before and after the given number
.
Write the number which comes
between
write the missing numbers in the chart
How many numbers?
1. How many numbers are there from 723 to 734 ?
723,724,725,726,727,
728,729,730,731,732,
733 ,734
12 number
2. How many numbers are there from 450 to 463 ?
450,451,452,453,454,
455,456,457,458,459,
460,461,462,463
14 number
Colour the beeds of the abacus to show the numbers given below.
Do the following page on your Maths Textbook [Page 13]
write the numbers in ascending and descending order
Arrange the 3 digits numbers in ascending order
a) 298,926,462,289
b) 909,901,990,900
c) 163,188,101,168
d) 506,856,990,456
e) 217,712,172,127
Arrange in descending order
a) 428,162,134,143
b) 926,916,928,918
c)382,283,832,823
d) 546,564,534,435
e) 692,296,962,926
write the smallest and biggest numbers in following numbers
[723, 733, 743,261, 271, 281,864, 866, 868780, 770,760,524, 535, 546]
Form as many 3-digit numbers as possible using all the given digits, without repeating any:
Example: Given digits: 4, 7 and 2
The numbers are:
247
274
427
472
724
742
a)Given digits: 5, 1 and 9
b) Given digits: 2, 6 and 8
Write the expanded form of following numbers
a) 735
b) 844
c) 905
Expand each of the following numbers according to the place value of their digits
a) 237 = 2hundreds + 3----+---ones
b) 849=---hundreds +
--- tens+----
c) 705 =7------+0 tens+
5---
Present the number 263 in different ways
1)
Do the problem in following page [Textbook Page 17]
count in 100's
i)
100
200
300
400
500
600
700
800
900
1000
ii)
110
210
310
410
510
610
710
810
910
iii)
160
260
360
----
----
----
----
----
960
count in 50's
50,100,150,200, 250,300,350,400,
450,500,550,600,
650,700,750,800,
850,900,950,1000
ii) 10,60,110,160,
---,---,---,--- ,---,---,--- ,---,
---,---,---,---,---,---,960
iii) Count in 10's[10 to 1000]
iv) Count in 5's
a) 5,10,15,---,---
b)6,11,16,---,---
c) 232,237,242,---,---
COINS AND CURRENCY
You are familiar with Indian coins and currency .When we purchase things from the shop we pay money .When we sell things we get money. Coins and currency notes are the essential things for our money transactions.
Answer each of the following by expressing the given number in different ways as directed :
1. Obtain 50 rupees as a sum using the following rupees notes or coins, in more than 1 way:
[20Rs, 10Rs, 5 Rs]
a) 50 rupees
Rs 50 =
b) 50 rupees =
Rs 50 =
2) obtain 100 rupees using notes or coins of value 50 rupees, 20 rupees and 10 rupees in 3 different ways:
3.obtain224 Rupees using notes or coins of value 200Rs, 100 rupees, 50 rupees, 20 rupees, 10 rupees and 1 rupee in 3 different ways:
a) 224 Rs=
b) 224 Rs=
c) 224 Rs=
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