Addition and subtraction

  • Mrs Beeswax
    problem

    Mrs Beeswax

    Age
    5 to 7
    Challenge level

    In how many ways could Mrs Beeswax put ten coins into her three puddings so that each pudding ended up with at least two coins?

  • Routes 1 and 5
    problem

    Routes 1 and 5

    Age
    5 to 7
    Challenge level
    Find your way through the grid starting at 2 and following these operations. What number do you end on?
  • Pass the Peas, Please
    game

    Pass the Peas, Please

    Age
    5 to 7
    Challenge level

    A game for 2 or more players. Practise your addition and subtraction with the aid of a game board and some dried peas!

  • Here to There 1 2 3
    problem

    Here to There 1 2 3

    Age
    5 to 7
    Challenge level
    Move from the START to the FINISH by moving across or down to the next square. Can you find a route to make these totals?
  • Twizzle's Journey
    problem

    Twizzle's Journey

    Age
    5 to 7
    Challenge level
    Twizzle, a female giraffe, needs transporting to another zoo. Which route will give the fastest journey?
  • Number Squares
    problem

    Number Squares

    Age
    5 to 11
    Challenge level
    Start with four numbers at the corners of a square and put the total of two corners in the middle of that side. Keep going... Can you estimate what the size of the last four numbers will be?
  • Alphabet Blocks
    problem

    Alphabet Blocks

    Age
    5 to 11
    Challenge level
    These alphabet bricks are painted in a special way. A is on one brick, B on two bricks, and so on. How many bricks will be painted by the time they have got to other letters of the alphabet?
  • Street Sequences
    problem

    Street Sequences

    Age
    5 to 11
    Challenge level

    Investigate what happens when you add house numbers along a street in different ways.

  • Today's date - 01/06/2009
    problem

    Today's Date - 01/06/2009

    Age
    5 to 11
    Challenge level
    What do you notice about the date 03.06.09? Or 08.01.09? This challenge invites you to investigate some interesting dates yourself.
  • Sorting the Numbers
    problem

    Sorting the Numbers

    Age
    5 to 11
    Challenge level
    Complete these two jigsaws then put one on top of the other. What happens when you add the 'touching' numbers? What happens when you change the position of the jigsaws?
Displaying 171 - 180 of 347