Grade 2 Math Comparing Numbers: Greater or Smaller
Comparing Numbers: Greater or Smaller
What is
comparing numbers?
Comparing numbers is a process to identify the greater or smaller number from two or more numbers.
Compare Two
Numbers:
(a) Compare
digit numbers:
If a number
has more digits than another number, then the highest digit number is greater.
Example:
99 and 191
à 191 has 3-digits.
à 99 has 2 digits.
à So, 191 > 99.
(b) Compare same
place digits of two numbers:
This process
is applicable when two numbers have same number of digits. In this case, check
1st digit from left to right. The number with a greater digit at the
1st place (left to right) is greater than the other number. If the 1st
place digits are equal, then check 2nd place digits and the number
is greater which has the higher 2nd place digit. If the 2nd
place digits are also equal, then check next place digits until you find
different digits at the same place of the two numbers.
Example:
(i) 321 and
421
1st
place digit (left to right) compare: 3 < 4
So, 421 >
321.
(ii) 432 and
442
1st
place digit (left to right) compare: 4 = 4
So, we need
to compare 2nd place.
2nd
place digit compare: 3 < 4
So, 442 >
432
(iii) 874
and 871
1st
Place digit compare: 8 = 8,
Go for the next
comparison,
2nd
place digit compare: 7 = 7
Go for the next
comparison,
3rd
place digit compare: 4 > 1
So, 874 >
871
1. Compare 104 and 99.
Solution:
104 has 3
digits.
99 has 2
digits.
So, 104 is
greater than 99.
2. Find the greater
number from 126 and 89.
Solution:
126 has 3
digits.
89 has 2
digits.
So, 126 is
greater than 89.
3. Compare 369 and
217.
Solution:
Between two
numbers:
Hundreds
place digit of 369 > Hundreds place digit of 217
or, 3 >
2.
So, 369 is
greater than 217.
4. Compare 469 and
479.
Solution:
Hundreds
place digit of 469 = Hundreds place digit 479
or, 4 = 4.
But,
Tens place
digit of 469 < Tens place digit of 479
or, 6 <
7.
So, 479 is
greater than 469.
5. Compare 239 and 149.
Solution:
Hundreds
place digit of 239 > Hundreds place digit 149
or, 2 > 1.
So, 239 is
greater than 149.
6. Make compare table
for 879 and 878 and find the greater number.
Answer:
|
(i)
|
8
|
=
|
8
|
|
(ii)
|
7
|
=
|
7
|
|
(iii)
|
9
|
>
|
8
|
From step (iii), we get, 879 is greater
than 878.
7. Compare the
following pairs of numbers by using < or >.
(i) 410 and
428
(ii) 362 and
381
(iii) 729
and 354
(iv) 967 and
816
(v) 468 and
567
(vi) 637 and
691
(vii) 711
and 237
Answer:
(i) 410 < 428
(ii) 362 <
381
(iii) 729 >
354
(iv) 967 >
816
(v) 468 <
567
(vi) 637 <
691
(vii) 711 >
237
8. Find the smallest
number in the group.
(i) 281 211
654 321 461
(ii)
981 587
211 568 68
Answer:
(i) 211
(ii) 68
9. What are the comparing
sings?
Answer:
 |