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bija089 [108]
3 years ago
5

The table shows the number of students in a class who play on a school team and/or are members of a school club:

Mathematics
1 answer:
eimsori [14]3 years ago
3 0
This one is very simple.

create a simple equation to find out

15 = 12 + x

subtract 12 from each side

x= 3

the missing number is 3

or, to be even simpler, take the total, subtract the total from the number you know and the difference is the missing number.

hope I helped



ALSO, we can check going down vertically. 3 + 10 =13. this is the total listed at the bottom.
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