# Which of these examples is an error of addition by one? A. 27,465 +52,534 = 79,899 B. 63,528 + 24,361 = 87,889 C. 51,824 + 48,165 = 99,989 D. 35,246 + 43,732 = 78,978

###### Question:

A. 27,465 +52,534 = 79,899

B. 63,528 + 24,361 = 87,889

C. 51,824 + 48,165 = 99,989

D. 35,246 + 43,732 = 78,978

## Answers

Answer:The correct answer is:A. 27,465 +52,534 = 79,899Step-by-step explanation:Given are the options for additionWe have to check each addition one by oneSo,A. 27,465 +52,534 = 79,899This option is the example of error of addition by one. The answer should have been 79,999. Hence there is an error in addition ..Hence, option a: 27,465 +52,534 = 79,899 is the correct answer ..

Answer:Option A - 27,465 +52,534 = 79,899Step-by-step explanation:To find : Which of these examples is an error of addition by one?Solution :We add all the examples,A) 27,465 +52,534 = 79,899 2 7 4 6 5 5 2 5 3 4+ --------------- 7 9 9 9 9There is an error of addition by 1 as 79999-79899=1B) 63,528 + 24,361 = 87,889 6 3 5 2 8 2 4 3 6 1+ --------------- 8 7 8 8 9No error.C) 51,824 + 48,165 = 99,989 5 1 8 2 4 4 8 1 6 5+ --------------- 9 9 9 8 9No error.D) 35,246 + 43,732 = 78,978 3 5 2 4 6 4 3 7 3 2+ --------------- 7 8 9 7 8No error.