Number System | Term 2 Chapter 1 | 7th Maths - Summary | 7th Maths : Term 2 Unit 1 : Number System
Chapter: 7th Maths : Term 2 Unit 1 : Number System
Summary
Summary
● 1/10 (one-tenth) of a unit can be written
as 0.1 in decimal notation.
● The dot represents the decimal point
and it comes between ones place and tenths place.
● The place value of the decimal digits
of a number are tenths (1/10), hundredths (1/100) , thousandths (1/1000) and so
on.
● In any number, when we move towards right from
one digit to the next, the place value of a digit is divided by 101.
● If the denominator of a fraction is
any of 10, 102, 103,... we can express them as decimals.
● If the denominator of a fraction is
any number that can be made as powers of 10 using the concepts of equivalent fractions,
then it can also be expressed as decimals.
● To compare two decimal numbers, we
compare the digits from left to right.
ICT
Corner
Step-1 : Open the Browser type the
URL Link given below (or) Scan the QR
Code. GeoGebra work sheet named “Number System” will open. Click on “NEW PROBLEM”
Step-2 : Type the correct Decimal
in the Input box and click enter. If the answer is correct it will show “Correct” else it will show “Try
Again”. Enter all the correct answers and click for “New Problem”
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