2nd Standard Maths Term 1 | Chapter 2: Comparing Numbers

2nd Standard Maths Term 1 | Chapter 2: Comparing Numbers

2nd Maths: Term 1 Unit 2 - Numbers

Comparing numbers

Recall

More or less

Comparing sesame balls and gooseberries

Sesame balls are less than gooseberries.

Gooseberries are more than sesame balls.

Learn

Compare the number of flowers.

Comparing flowers in three different pots

Yellow pot has 9 flowers and blue pot has 5 flowers.

Yellow pot has more flowers than blue pot.

9 is greater than 5.

Blue pot has fewer flowers than yellow pot.

5 is less than 9.

Blue pot has 5 flowers and green pot also has 5 flowers.

Both pots have equal flowers. 5 is equal to 5.

Practice

Count the objects and write the number in each of the boxes. Compare the number of objects on left and right side and circle the correct statement among the given three.

Practice comparing numbers of fish and birds

Learn

Comparing numbers

Let us compare the single digit number with two digit number for example., 9 and 15

Comparing 9 and 15 using tens and ones

15 is greater than 9

While comparing single digit numbers with two digit numbers, we see that two digit number is always greater than the single digit number.

1. Let us compare the two digit numbers with different tens 25 and 35

Comparing 25 and 35 by looking at the tens place

It is enough to compare tens place of the two given numbers. There are 2 tens in 25. 3 tens in 35.

2 tens is less than 3 tens.

So, 25 is less than 35.

35 is greater than 25.

2. Let us compare the two digit numbers with different ones 27 and 24

Comparing 27 and 24 by looking at the ones place

Here the tens places are equal. Then we have to compare the ones.

There are 7 ones in 27.

4 ones in 24.

7 ones is greater than 4 ones.

So, 27 is greater than 24.

24 is less than 27.

Teacher Note: Teacher should insist that while comparing two digit numbers with different tens place children can compare only tens place . If the tens place are the same, they need to compare the ones place.

Practice

Choose the correct answer.

i) 75 is greater than

     71      85      98      75

ii) 40 is less than

     25      49      39      40

iii) 56 is equal to

     60      65      56      57

Show Answers

i) 75 is greater than
     71      85      98      75

ii) 40 is less than
     25      49      39      40

iii) 56 is equal to
     60      65      56      57

Try this

Put a tick (✔) for the correct answer and (X) for the wrong answer.

i) 3 tens 4 ones is greater than 2 tens 3 ones ( )

ii) 6 tens 5 ones is less than 2 tens 3 ones ( )

iii) 5 tens 3 ones is equal to 53 ( )

iv) 55 is equal to 56 ( )

v) 65 is greater than 64 ( )

vi) 74 is less than 47 ( )

Show Answers

i) 3 tens 4 ones is greater than 2 tens 3 ones ()

ii) 6 tens 5 ones is less than 2 tens 3 ones (X)

iii) 5 tens 3 ones is equal to 53 ()

iv) 55 is equal to 56 (X)

v) 65 is greater than 64 ()

vi) 74 is less than 47 (X)