How Many Are Hidden?

Find the missing number by taking away

 
Some are hidden under the cup! Can you work out how many are hiding?
There were 8 altogether. You can see 5. How many are hidden?
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8 − 5 = 3 hidden!
To find a hidden (missing) number, take the ones you can see away from the total. 8 − 5 = 3, so 3 are hidden. This uses taking away to solve a puzzle!