Find the missing number to 1,000
Find the missing number to 1,000
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Which number makes the equation true?
0 + = 0
About this exercise
Each round shows an equation with one number missing. Your job is to find the missing number — the inverse operation can help (addition and subtraction are linked).
How to practise
When an addend is missing, subtract. When a minuend is missing, add. Example: 423 + ? = 700 → 700 − 423 = 277.
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