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प्रश्न
In a quiz, team A scored −40, 10, 0 and team B scored 10, 0, −40 in three successive rounds. Which team scored more? Can we say that we can add integers in any order?
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उत्तर
Team A scored −40, 10, 0
Total score of team of A = − 40 + 10 + 0
= −30
Team B scored 10, 0, −40
Total score of team of B = 10 + 0 + (−40)
= −30
∴ The scores of both teams are equal.
Yes, integers can be added in any sequence. It was noted that the scores achieved by both teams in successive rounds were the same in number but varied in sequence. Nevertheless, the overall score for both teams was identical.
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संबंधित प्रश्न
Write down the pair of integers whose difference is −10.
Write down the pair of integers whose sum is 0.
Write a pair of negative integers whose difference gives 8.
Fill in the blank to make the following statement true:
−53 + ______ = −53
Fill in the blank to make the following statement true:
[13 + (−12)] + (______) = 13 + [(−12) + (−7)]
Kabilan was having 10 pencils with him. He gave 2 pencils to Senthil and 3 to Karthik. Next day his father gave him 6 more pencils, from that he gave 8 to his sister. How many pencils are left with him?
A lift is on the ground floor. If it goes 5 floors down and then moves up to 10 floors from there. Then in which floor will the lift be?
(–23) + 47 is same as 47 + (–23).
When we change the order of integers, their sum remains the same.
a – b = b – a
