Daily Archives: April 14, 2019

DAY/DYDD 104:

The Main Challenge Here’s another selection of mental arithmetic questions.  Can you answer all seven correctly?  (10 + 10) – (15 – 3) = ?  What is the sum of 0.83 and 0.89?  What is 1 × 9?  If Ben earns £10 every … Continue reading

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