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Question
Four students solved the sum 123 + 345. Which of the following options is incorrect?
Four students solved the sum 123 + 345. Which of the following options is incorrect?
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Solution
The correct option is D 100 + 300 + 20 + 40
When we add 123 and 345, we get
Let’s check each option.
a. 120 + 340 + 3 + 5
b. 100 + 300 + 20 + 40
c. 100 + 300 + 20 + 40 + 3 + 5
d. 468
The numbers in all options except 100 + 300 + 20 + 40 add up to 468.
Hence, 100 + 300 + 20 + 40 is incorrect.
When we add 123 and 345, we get
Let’s check each option.
a. 120 + 340 + 3 + 5
b. 100 + 300 + 20 + 40
c. 100 + 300 + 20 + 40 + 3 + 5
d. 468The numbers in all options except 100 + 300 + 20 + 40 add up to 468.
Hence, 100 + 300 + 20 + 40 is incorrect.
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