Somerville School, Noida
Mathematics Worksheet – 2 (2020-2021)
Class-III
Ex.1 Complete the counting Th H T O
9 9 1
Counting Numbers 999 – 1050
Th H T O
Th H T O
Th H T O
Th H T O
Th H T O
1
1
1
1
0 3 1
1
0 4 1
1
0 3 5
1
0 4 8
0 0 1
0 1 1
0 2 1
9 9 2
9 9 3
1
9 9 9
1
0 0 0
1
1
0 2 6
0 1 9
0 1 0
Home Assignment – Write numbers from
a) 1081 – 1100
b) 1101 – 1120
c) 1951 – 1980
d) 3681 – 3710
Numbers Beyond 999
The greatest 3- digit number is 999.
999.If we add 1 to 999, we get 1000.
Th H
T
0
9
9
9
+
1000 is the smallest 4-digit
digit number. We read it as one thousand.
1
1
0
0
On the abacus 1000 is represented as
Th
9
9
9
H
T
+
O
1
=
Th
H
T
O
1
0
0
0
Ex1. Show the following numbers on the abacus using rings .One has been done for you.
a)
b)
Th
H
T
O
2
0
0
Two thousand
Th
0
H
T
4
0
0
Four thousand
c)
O
0
d)
Th
H
T
0
6
0
0
Six thousand
0
Th
H
T
9
0
0
Nine thousand
0
0
0
Ex.2 – Show the following numbers on the abacus. The first one has been done for you –
Remember- We do not leave gaps between the rings or circles
a)
b)
Th
H
T
0
Th
3105
H
T
0
T
0
5462
c)
d)
Th
H
T
Th
0
7458
H
2269
Ex3. Read the abacus and write the number-
Th
H
T
0
__________________
Th
H
T
0
______________
Th
H
T
0
______________