60All NRICH live resourceshttp://nrich.maths.org/en 2012 https://nrich.maths.org/public/terms.phpPainting PossibilitiesThis task, written for the National Young Mathematicians' Award 2016, involves open-topped boxes made with interlocking cubes. Explore the number of units of paint that are needed to cover the boxes and the small cubes that would fit inside each one.https://nrich.maths.org/12262Wed, 01 Dec 1999 00:00:01 +0000Ring of NumbersChoose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.https://nrich.maths.org/9985Sat, 01 Jun 2013 00:00:01 +0100Open SquaresThis task, written for the National Young Mathematicians' Award 2016, focuses on 'open squares'. What would the next five open squares look like?https://nrich.maths.org/12263Wed, 01 Dec 1999 00:00:01 +0000Sri Lanka 2014 Conferencehttps://nrich.maths.org/11335Mon, 01 Dec 2014 00:00:01 +0000Mona's DayDescribe what Mona might be doing from these pictures of clocks which show important times in her day.https://nrich.maths.org/10819Sat, 01 Mar 2014 00:00:01 +0000Trig TablesCan you fill in all the missing values and trig functions to make the tables complete? <a href="https://undergroundmathematics.org/trigonometry-triangles-to-functions/trig-tables"></a>https://nrich.maths.org/12381Wed, 01 Dec 1999 00:00:01 +0000Mediant MadnessKyle and his teacher disagree about his test score - who is right?https://nrich.maths.org/831Tue, 01 Feb 2011 00:00:01 +0000Mixing Lemonade Posterhttps://nrich.maths.org/11226Mon, 01 Sep 2014 00:00:01 +0100Mixed BagA collection of intriguing questions involving logarithms.https://nrich.maths.org/12382Wed, 01 Dec 1999 00:00:01 +0000Double TroubleWhat will happen if we double the number of naughty dogs? <a href="/content/id/12746/DoubleTrouble.pdf" class="pdflink">DOWNLOAD HERE</a>https://nrich.maths.org/12746Wed, 01 Dec 1999 00:00:01 +0000Farey SequencesThere are lots of ideas to explore in these sequences of ordered fractions.https://nrich.maths.org/2086Tue, 01 Feb 2011 00:00:01 +0000What Am I?Can you draw the shape that is being described by these cards?https://nrich.maths.org/10463Tue, 01 Oct 2013 00:00:01 +0100Advanced Mathematics on Dotty GridsA dotty grid is a very simple mathematical structure that offers potential for very deep thought...https://nrich.maths.org/10813Sat, 01 Mar 2014 00:00:01 +0000Greater Than or Less Than?Use the numbers and symbols to make this number sentence correct. How many different ways can you find?https://nrich.maths.org/10587Fri, 01 Nov 2013 00:00:01 +0000Measure Our WeightsThis practical challenge focuses on what you would use to find out your weight.https://nrich.maths.org/10621Sun, 01 Dec 2013 00:00:01 +0000