Addition and Subtraction of Integers

IMPORTANT

Addition and Subtraction of Integers: Overview

This topic covers concepts such as Operations on Integers, Addition of Two Integers, Addition of Two Positive Integers, Addition of Two Negative Integers, Addition of Two Integers of Opposite Signs, Subtraction of Two Integers, etc.

Important Questions on Addition and Subtraction of Integers

HARD
IMPORTANT

A milk-dairy produces 25545 litres of milk everyday. It supplies 15625 litres of milk to a milk depot and the rest to the market. How much milk is supplied to the market?

HARD
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Amrita is a microbiology student. She was doing research on optimum temperature for the survival of different strains of bacteria. Studies showed that bacteria X need optimum temperature of -31°C while bacteria Y need optimum temperature of -56°C. What is the temperature difference?

EASY
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7589 - _____=3434

EASY
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Find the distance between the points  -3 and -2 using the number line.

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MEDIUM
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Here is a list of number: 4, 7, 18, 28, 12, 23, 27. Find the sum of two numbers that have a difference of 4.

EASY
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In the following figure, sum of the numbers at the vertices is written at the centre. What will come in the box?

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MEDIUM
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Find the sum of -4 and -6.

MEDIUM
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Find the sum of 27 and -13.

MEDIUM
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Subtract 3 from 9.

MEDIUM
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Find the sum of -3 and -5.

MEDIUM
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Find the sum of 13 and 27.

HARD
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A jar containing 50 litres of water, is fitted with an inlet pipe and an outlet pipe. Water is flowing into the tank at 1 litre per minute and flowing out at 4 litres per minute.
How much water will be there in the jar at the end of 15 minutes?

There will be 
_____litres of water in the jar at the end of 15 minutes.

EASY
IMPORTANT

A building which is 50 ft deep underground, has 5 floors below it. What is the height of the building from the ground if there are 20 floors above the ground level?  (The height between any two neighbouring floors is the same.)

The building is 
_____ft tall from the ground.

EASY
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The product of two numbers is −64. If one number is (−8), what is the other number?

The other number is
_____.

EASY
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The maximum and minimum temperature at a particular place were $3^\circ$C and ($-5^\circ$C) respectively. What was the rise in temperature from night-time to daytime?

The rise in temperature from night time to daytime was
 _____ $^\circ$ C

EASY
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At some place 12 afternoon the temperature was above zero 18° Celsius and at midnight the temperature decreased 0° to 20 Celsius. Find the change in temperature

EASY
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The point of maximum depth is 11600  m below sea level. The mountain peak of maximum height is 8846  meters high from the sea level. Find the height of the peak from the depth point.

EASY
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Plato was born in 429 B.C. and died in 348 B.C. How many years he lived ?

EASY
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Fill in the blanks with > or <

-27-+27 _____ 27-+45

EASY
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Fill in the blanks with > or <

-21--21 _____ -21+-21