# Monthly Archives: April 2021

## DAY/DYDD/PÄIVÄ/NAP 108

The Main Challenge Here’s seven more mental arithmetic questions to try.  Can you get all seven correct?  (11 – 5) – (4 + 1) = ?  What is 10 more than –4?  47 × 4 = ?  0.32 ÷ 4 = ?  3/4 × … Continue reading

## DAY/DYDD/PÄIVÄ/NAP 107

The Main Challenge Here’s seven tricky mental teasers to try:  (18 – 5) – (7 – 17) = ?  128 + 294 = ?  How many seconds are in a quarter-of-an-hour?  How many degrees are in three-quarters of a circle?  (16 – 8) × (13 … Continue reading

## DAY/DYDD/PÄIVÄ/NAP 106

The Main Challenge Here are seven more mental arithmetic questions for you to try:  Which number multiplied by itself gives 196?  What is 50 + 400 + 5?  54 – 45 = ?  If Jo runs 10 miles in one … Continue reading

## DAY/DYDD/PÄIVÄ/NAP 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

## DAY/DYDD/PÄIVÄ/NAP 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

## DAY/DYDD/PÄIVÄ/NAP 103

The Main Challenge Here’s a 7-part challenge to test your basic arithmetic knowledge:  What is 56 divided by 14?  (1 + 11) + (20 – 4) = ?  Find which one of these is a factor of 14. Is it 3, 5, … Continue reading

## DAY/DYDD/PÄIVÄ/NAP 102

The Main Challenge Can you place the 16 numbers 0 0 1 1 2 2 3 4 4 5 6 7 7 8 9 9 into the 16 gaps below so all four lines work out arithmetically? ◯  +  ◯   … Continue reading

## DAY/DYDD/PÄIVÄ/NAP 101

The Main Challenge Using each of the numbers 0.5, 1, 1.5 and 2 once each, with the four arithmetical operations + – × ÷ available, can you arrive at the target answer of 7? For the number puzzle enthusiast, can you find a 2nd … Continue reading