find the sum (use short method) 3678 + 999
Answers
Answered by
19
Answer:
4677
Step-by-step explanation:
3678+(1000-1)
3700-22+1000-1
(3700+1000)-(22+1)
4700-23
4677
Answered by
1
Answer:
4677 is the correct answer
Step-by-step explanation:
hello
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