34?9 – 1768 = 1671
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Explain what number should be used to replace the question mark in the subtraction equation.
34?9 – 1768 = 1671
.....
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. Note that 1768 + 1671 = 34?9. So, the question mark should be replaced with
because the sum of the tens place digits is
B. Note that 1768 + 1671 = 34?9. So, the question mark should be replaced with
because the sum of the ones place digits is
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