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Math topics
Math a-z
News
German
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At the start of the web page a mental arithmetic problem with one of the four basic arithmetic operations was created.
Hint:
Click on the number between 1 and 100,
which you think is the solution.
A second click on the same number will undo the selection.
Click on
check
to check your answer.
Click on
new
to create a new problem.
Can you top
295 points
?
Topic:
Calculating in ℕ
Mental arithmetic
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