What are the numbers in the circles?
M38: Another sum puzzle
three numbers in each line must add up to the same total.
The total can be shown or hidden.
The number options are:
1. Small whole numbers
2. Multiples of ten 3. Decimals
4. Positive and negative numbers.
Use the other buttons to show a few puzzles or just one.
is the weight of a gold bar?
Use the 1 ,2 and 3 buttons to generate the problems.
Three levels of difficulty:
level 1: small whole number solutions
level 2: multiple of ten solutions
level 3: gold bars on both sides
Count on and back in 2s, 3s,
4s and 5s
B8: Count on and back in 6s,
7s, 8s, 9s, 10s and 11s
B9: Count on and back in 6s,
7s, 8s, 9s, 10s, 11s, 15s, 19s, 21s and 25s
B10: Count in steps of 0.1,
0.2, 0.25 and 0.5
Ten numbers are in a sequence,
two of them are revealed. What are the missing numbers?
The same amount is added each time.
different number sequences
the slider to determine the number of red circles.
The rule for each number sequence can be explained by looking
at how the counters are arranged. Click in the table to reveal
hidden terms of the sequences.
repeating pattern is made from squares and circles. How
many squares will there be with 17 circles? How many circles
with 20 squares?
Use the slider to determine the number of squares.
fence is made from posts and bars. How many bars will there
be with 20 posts?
Fence 1 (two bars between
each pair of posts).
M13: Fence 2 (three bars
between each pair of posts)
out the value of each shape. The total for each row and
column is shown. Use the sliders to input your answers.
Click on the 'check' button to see how many are correct.
Shape Puzzle 1
M23: Shape Puzzle 2
Three of the same shape will not appear in a row.
M24: Shape Puzzle 3
The solutions can be negative numbers.
What are the missing numbers?
functions are used in each line. Can be used to develop
algebraic thinking, for example, the numbers in the triangles
are 4 times the numbers in the squares.
calculator: what functions do the 9 mystery buttons
The buttons showing polygon people carry out different functions.
Click on a button to see what it does. The results are saved
in the table.
There are six 'levels':
1. Fixed add and subtract (the same operations everytime)
2. Random add and subtract
3. Fixed multiply and divide
4. Fixed multiply and add or subtract eg x 2 + 1
5. Random multiply and add or subtract
6. A variety of operations, eg rounding
wants to be a Millionaire?' two-team whiteboard sequences
shape is the 33rd in a sequence of shapes? Choose from five
shapes. Money is won in the same way as the TV programme "Who
Wants to be a Millionaire?".
Choose to have either one or two shape sequences on the screen
(click the '1' and '2' buttons). The game could be played
by two teams with one person from each team being close to
the whiteboard to select the shape. Each shape sequence panel
can be dragged to the left or right to make it easier for
pupils to access the buttons from either side of the whiteboard.
B3: Shape sequences questions
What shape is the 33rd in a sequence of shapes? Click on the
question mark to reveal the answer.