Page 23 - Math Skill - 4

Numbers 21

MIND MAP

Writing Numbers Numbers Numeration

STANDARD FORM INDIAN INTERNATIONAL
6583471 65,83,471 Ones Ones
WORDS FORM Tens Tens

33,333 Thirty three thousand Hundreds Hundreds
three hundred thirty three Thousands Thousands

EXPANDED FORM Ten thousands Ten thousands
5672 5000 + 600 + 70 + 2 Lakhs Hundred thousand
Ten lakhs Millions
Crores Ten millions
Ten crores Hundred millions
Comparing Numbers

Value

ASCENDING ORDER
From smallest to greatest PLACE VALUE FACE VALUE
e.g. 55, 101, 37, 12 e.g. place value of e.g. face value of
7 in 6790 is 7
5 in 9576 is 500
12 > 37 > 55 > 101
DESCENDING ORDER
From greatest to smallest Relation
e.g. 55, 101, 37, 12
101 > 55 > 37 > 12
Place Value = Face value × Position
value of that digit
Rememberable Points
� 1 lakh = 100 thousands � 10 crores = 100 millions
� 10 lakhs = 1 million � 100 crores = 1 billion Successor Number + 1
� 1 crore = 10 millions Predecessor Number – 1