| Click
on the 'change' button and watch the numbers change. Click on the 'print'
button to print a pupil worksheet and an answer sheet. The
worksheets can be printed providing the password is entered.
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| Order,
add, subtract, multiply and divide positive and negative numbers |

An example of a wall puzzle: five numbers are on the wall. Write
the five numbers below the wall on the right bricks in the wall.
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Age
12-14
Wall puzzles
The
number on a brick is either the sum, difference or product of
the two numbers below.
There are 6 levels of difficulty going from showing 5
numbers on the wall (the easiest) to showing none of the numbers
on the wall.
Use the slider to determine how many numbers are on the wall
then click on the 'change' button. You will only see the effect
when the worksheet is printed
There
are two types of worksheet:
The
numbers on the bricks are the sum of the two numbers below
The numbers on the bricks are the
product, sum or difference of the two numbers below
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Age
11-12
Add and subtract positive and negative numbers. Write a number
in each circle so that the number in each square equals the sum
of the two numbers on either side of it.
Sum
puzzle
Age
12-13
Multiply positive and negative numbers. Write a number in each
circle so that the number in each square equals the product of
the two numbers on either side of it.
Product
puzzle 1
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|
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Age
11-13
Sum,
Difference and Product
A
problem-solving activity
Two
numbers (positive or negative) are generated, their sum, difference
and product are worked out.
Work out what the two numbers are.
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Age
12-13
Complete this multiplication table. Positive and negative numbers
are used.
Multiplication
table 1
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Age
11-12
Missing numbers: Answer questions
such as -12 +
= -19
Complete
the magic squares
3
x 3 magic square
4 x 4 magic square
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Age
11-12
Number
cell puzzles: the empty cells are filled by adding the two preceding
numbers.
Number
cell puzzles
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| Recognise
multiples |
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Age
11-12
Find
the lowest common multiple
of two numbers, eg 16 and 24
Find
the highest common factor of
two numbers, eg 36 and 27
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Investigate
problems such as:
Age
11-12
Write a number in each circle so that the number in each square
equals the product of the two numbers on either side of it.
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