30 simple arithmetic exercises for computing without paper and pencil

Some simple arithmetic exercises for calculations without paper and pencil

설명

Math, Arithmetic

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질문

10 초

질문당

0:55

평균 시간

Disqualified

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2 댓글

Bossy Puffin judge 6월 22, 2020

Thank you for taking the effort to submit your test for the contest.
Unfortunately, this test will not be able to receive a prize:
Missing explanations.

Tall Monkey 5월 26, 2020

There is not any explanation.

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