# NRICH ADDITION PROBLEM SOLVING KS2

Tom and Ben visited Numberland. Ten cards are put into five envelopes so that there are two cards in each envelope. The Zios have 3 legs and the Zepts have 7 legs. One block is needed to make an up-and-down staircase, with one step up and one step down. We have exactly coins.

Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line. She gave the clown six coins to pay for it. Can you fill in this table square? George and Jim want to buy a chocolate bar. Are these statements always true, sometimes true or never true? Mystery Matrix Age 7 to 11 Challenge Level:

# Problem Solving :

If we number the cubes from the top, starting with 1, can you picture which cubes adddition directly below this first cube? Is there only one solution in each case?

She has 24 dominoes in additikn box and there are spots on them altogether. Sweets are given out to party-goers in a particular way.

Can you discover its value in each problem? Age 5 to 7 Visualising at KS1 These lower primary tasks all specifically draw on the use of visualising. Can you predict when you’ll be clapping and when you’ll be clicking if you start this rhythm? Choose four different digits from and put one in each box so that the resulting four two-digit numbers add to a total of Four bags contain a large number of 1s, 3s, 5s and 7s.

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Play to 37 Age 7 to 11 Challenge Level: Make Age 7 to 11 Challenge Level: Have a go at balancing this equation. We have the correct money, not a penny more, not a penny less!

## Problem Solving

Vera is shopping at a market with these coins in her purse. Using the information given, can you replace the stars in the calculation with figures?

In the second article, Jennie offers you practical ways to investigate aspects of your classroom culture and in the third article, she suggests three ways in which we can support children in becoming competent problem solvers. What result would that be?

Age 5 to 7 Working Backwards at KS1 The lower primary tasks in this collection could each be solved by working backwards. Four of these clues are needed to find the chosen number on this grid and four are true but do nothing to help in finding the number.

# Multiplication and Division KS2 :

Pebbles Age 7 to 11 Challenge Level: Trebling Age 7 to 11 Challenge Level: What is the smallest number of coins needed to make up 12 dollars and 83 cents? There are six numbers written in five different scripts. Tasks for KS2 children which focus on working systematically.

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Consecutive Numbers Age 7 to 14 Challenge Level: Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Can you order the digits from 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? There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. Money Line-up Age 5 to 7 Challenge Level: In this article, Jennie suggests kz2 we can support this process in three principal ways.

## Multiplication and Division KS2

Investigate the total number of sweets received by people sitting in different positions. Look at what happens when you take a adxition, square it and subtract your answer.

Nice or Nasty Age 7 to 14 Challenge Level: This square jigsaw is written in code. What could Lolla have paid for the balloon?