Addition, subtraction, multiplication or division?
The phantom function gobbler
has eaten all the function symbols!
Work out what the missing function is for each sum.
A clue if you are really stuck is … look to see if the number has got larger or
smaller. X
+ usually make numbers larger - ÷ usually make numbers smaller.
10
10 = 20
12
2=6
8
2=6
10
2 = 12
5
5 = 25
15
5 = 10
20
2 = 10
3
3=9
16
4 = 20
0
6=0
Now try to catch out a friend by writing a sum you have thought of; write it
down without the function and see if they can work out which one should be
there.