Today’s Challenge
Here’s a selection of mental arithmetic questions. Can you get all seven correct?
(10 + 10) – (15 – 3) = ?
What is the sum of 0.83 and 0.89?
What is 1 × 9?
If Ben earns £10 every half-hour, how much will he earn in 40 hours?
If you burn 100 calories by climbing 100 stairs, how many calories do you burn when climbing 50 stairs?
What is 5456 – 4372?
Twice my age plus 4 more is 72. How old am I?
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The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 2nd & 5th rows of the…
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