Number Names

In 1st grade, you have studied number names up to 20. Now here you will learn names of the larger number. You have already learned the number-names from 1 to 20 and also number-names of 30,40,50,60,70,80,90 and 100. Here we will use the number-names of these numbers.
Example 1: Write the 128 in words.
Solution :
First write the given number in expanded form and write the name of each number below it and then combine that name.

128 = 100                + 20        + 8
       = One Hundred + Twenty + Eight

So the number-name of 128 is one hundred twenty eight.
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Example 2: Write the 412 in words.
Solution :
First write the given number in expanded form and write the name of each number below it and then combine that name.

412 = 400                 + 10   + 2
       = Four Hundred + Ten + two

So the number-name of 128 is Four hundred twelve .
(twelve is used for ten + 2)
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Example 3: Write the 685 in words.
Solution :
First write the given number in expanded form and write the name of each number below it and then combine that name.

685 = 600               + 80       + 5
       = Six Hundred + Eighty + Five

So the number-name of 128 is Six hundred eighty five .
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Some times we have number-names and from that we have to write the number.
Example 1: Write in numeral of Two hundred twenty four.
Solution:
First write the number-name, below that write each numeral and then combine them together. For making it easy I am giving plus sign between each number.
 Two hundred +    twenty   + four
       200           +      20        + 4
  = 224
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Example 2: Write in numeral of Three hundred fifty six.
Solution:
First write the number-name, below that write each numeral and then combine them together. For making it easy I am giving plus sign between each number.
 Three hundred +    fifty   + six
       300             +      50    +  6
  = 356
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Practice
Q.1 Write the number-names of the following.
1) 234
2) 456
3) 122
4) 786
5) 937

Q.2 Write the numeral.
1) Six hundred forty two.
2) Seven hundred thirty one.
3) Two hundred sixty seven.
Number names

2nd Grade Math

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