60Upper Primary Pupil big button pagehttp://nrich.maths.org/primary-upperen 2012 http://nrich.maths.org/public/terms.phpSatisfying StatementsCan you find any two-digit numbers that satisfy all of these statements?http://nrich.maths.org/13325Wed, 01 Dec 1999 00:00:01 +0000What Do You See Here?An activity for teachers to initiate that adds to learners' developing understanding of fractions.http://nrich.maths.org/13060Wed, 01 Dec 1999 00:00:01 +0000Paper HalvingIn how many ways can you halve a piece of A4 paper? How do you know they are halves?http://nrich.maths.org/13059Wed, 01 Dec 1999 00:00:01 +0000Linked ChainsCan you find ways to make twenty-link chains from these smaller chains?http://nrich.maths.org/12936Wed, 01 Dec 1999 00:00:01 +0000Fraction LengthsCan you find combinations of strips of paper which equal the length of the black strip? If the length of the black is 1, how could you write the sum of the strips?http://nrich.maths.org/12935Wed, 01 Dec 1999 00:00:01 +0000Always, Sometimes or Never? ShapeAre these statements always true, sometimes true or never true?http://nrich.maths.org/12673Wed, 01 Dec 1999 00:00:01 +0000Exploring Number Patterns You MakeExplore Alex's number plumber. What questions would you like to ask? What do you think is happening to the numbers?http://nrich.maths.org/8387Tue, 01 Feb 2011 00:00:01 +0000If the World Were a VillageThis activity is based on data in the book 'If the World Were a Village'. How will you represent your chosen data for maximum effect?http://nrich.maths.org/7725Mon, 01 Aug 2011 00:00:01 +0100Curious NumberCan you order the digits from 1-3 to make a number which is divisible by 3 so when the last digit is removed it becomes a 2-figure number divisible by 2, and so on?http://nrich.maths.org/7218Tue, 01 Feb 2011 00:00:01 +0000Coded Hundred SquareThis 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?http://nrich.maths.org/6554Tue, 01 Feb 2011 00:00:01 +0000The Remainders GameA game that tests your understanding of remainders.http://nrich.maths.org/6402Tue, 01 Feb 2011 00:00:01 +0000Method in Multiplying Madness?Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?http://nrich.maths.org/5612Sat, 01 Oct 2011 00:00:01 +0100Factors and Multiples GameA game in which players take it in turns to choose a number. Can you block your opponent?http://nrich.maths.org/5468Tue, 01 Feb 2011 00:00:01 +0000Stringy QuadsThis practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!http://nrich.maths.org/2913Tue, 01 Feb 2011 00:00:01 +0000Up and Down StaircasesOne block is needed to make an up-and-down staircase, with one step up and one step down. How many blocks would be needed to build an up-and-down staircase with 5 steps up and 5 steps down?http://nrich.maths.org/2283Tue, 01 Feb 2011 00:00:01 +0000TreblingCan you replace the letters with numbers? Is there only one solution in each case?http://nrich.maths.org/2004Tue, 01 Feb 2011 00:00:01 +0000FittedNine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?http://nrich.maths.org/1854Tue, 01 Feb 2011 00:00:01 +0000Mystery MatrixCan you fill in this table square? The numbers 2 -12 were used to generate it with just one number used twice.http://nrich.maths.org/1070Tue, 01 Feb 2011 00:00:01 +0000Forgot the NumbersOn my calculator I divided one whole number by another whole number and got the answer 3.125. If the numbers are both under 50, what are they?http://nrich.maths.org/1015Tue, 01 Feb 2011 00:00:01 +0000Number DetectiveFollow the clues to find the mystery number.http://nrich.maths.org/204Tue, 01 Feb 2011 00:00:01 +0000Ice CreamYou cannot choose a selection of ice cream flavours that includes totally what someone has already chosen. Have a go and find all the different ways in which seven children can have ice cream.http://nrich.maths.org/77Tue, 01 Feb 2011 00:00:01 +0000