# Monthly Archives: April 2019

## DAY/DYDD 110:

The Main Challenge Carry out these instructions in our 7-step challenge: Work out the sum of 4 and 6, Calculate the product of 4 and 6, Find the difference between the two answers in Points 1 and 2, Square the … Continue reading

## DAY/DYDD 109:

The Main Challenge Last chance to get all seven correct. Be careful as there may be one or two tricky ones! (1 – 2) – (3 – 4) = ? 4 ÷ 0.5 = ? What is 25 less than the product of … Continue reading

## DAY/DYDD 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 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 106:

The Main Challenge Here are seven 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 hour, … Continue reading

## 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

## 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

## DAY/DYDD 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 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 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