Daily Archives: April 15, 2019

DAY/DYDD 105:

The Main Challenge How quickly can you correctly answer the following seven questions?  (17 – 4) + (12 – 9) = ?  (3 – 2) – (16 – 16) = ?  What is two-thirds plus three-quarters?  109 + 10 = ?  (3 + 16) + … Continue reading

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