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Vika [28.1K]
3 years ago
9

Mental Arithmetic: work the following exercises in your head. Do not calculate with a pencil or paper. Do not use a decimal. Thi

nk of the number seven. Now add eight to it. Now add four more. Now subtract nine. Now add three. Your answer is _____.
Mathematics
2 answers:
Alexxandr [17]3 years ago
6 0
The answer is 13 because it is
Andrew [12]3 years ago
3 0
13 is your answer.
7+8=15
15+4=19.
19-9=10
10+3=13
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snow_tiger [21]

to find midpoint, find the mean.


add the numbers together and divide by the amount of numbers there is:


10 + 20 = 30

30/2 = 15


15 is your answer


hope this helps




6 0
3 years ago
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Andreas93 [3]

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Here that's

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marusya05 [52]
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5 0
4 years ago
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MakcuM [25]

Answer:

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Answer:

C

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A) 26

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3 years ago
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