EASY
7th Tamil Nadu Board
IMPORTANT
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The temperature at 12 noon at a certain place was 18° above zero. If it decreases at the rate of 3° per hour at what time it would be 12° below zero?

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Important Questions on Number System

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Exercise 1.1>Q 9

 Identify the problem with a negative number as its answer:

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Exercise 1.1>Q 10
The value of (-10)+(+7) is
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Exercise 1.1>Q 11
The value of (-8)+10+(-2) is 
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Exercise 1.1>Q 12
The value of 20+(-9)+9 is
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Try these>Q 1

Find the value of (-4)-(+3) by using number line.

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Try these>Q 1

 Find the value of (-4)-(-3) by using the number line.

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Try these>Q 2

Find the values of (–6)–(–2) and  (–6)+2, then compare the answers.

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 1 - Number System>Try these>Q 2

Find the values of 35-(-7)and 35+7, then compare the answers.