Solve it...!

Numeracy problems to solve for Key Stage 1, 2 and 3

 Key Stage 1     Solve it...!     Some number puzzles for you to solve

Number chains

Here is a chain of digits which add up to 20.

 4 8 7 2 9 1 3 1 1 2 4 9 5 3 5 6 7 2 3 1 5 4 3 5 1 8 7 6 1 1 5 6 4 3 1 2 6 2 4 3 1 2 9 3 4 1 2 1 3 3 4 8 5 3 6 4 2 5 2 7 9 4 8 2

Can you find any more than 20 chains?
What is the longest 20 chains you can find?

Choose a different total and explore chains which make your total.

Where do the numbers live?

The numbers 1,2,3,4,5,6,7,8 and 9 fit in the squares.
There are two squares touching each circle.
The number on the circle must be the difference between the two numbers you put in the squares that touch the circle

Can you find the right home for each number?

Can the wasp reach the apple

Help the wasp get to the apple. It can only pass numbers or answers that are odd. Is there only 1 route?

What are these creatures worth?

Each letter of the alphabet can have a value.

 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

 ANT is worth 1 + 14 +20 =35
 ZEBRA is worth 26 + 5 + 2 + 18 +1=52

Can you find some creatures worth less than ANT?
Can you find some creatures worth more that ZEBRA?

Which of your creatures is worth the most?
Which is worth the least?

An extra challenge

Triangle grids

 Grids do not have to be made from squares. Here is a grid made from triangles. The number 1 - 8 are missing from the grid. When a pair of numbers touch their total must be ODD. Numbers do not touch at corners only on sides. Copy the grid and try to find where to put the numbers. There are several possible answers.

 Key Stage 2 and 3 Solve it...!  Multiplication Search

Multiples of 2, 5 and 10

Try to find multiplications from the 2x, 5x and 10x tables. An example has been done for you (5 x 4 = 20). There are 45 Multiplications to find! Look in all directions.

 17 100 10 42 7 2 10 20 60 21 22 5 10 50 20 8 35 12 2 24 3 11 1 10 9 90 5 3 15 41 110 4 2 5 10 2 7 14 32 60 2 4 45 20 20 2 18 9 5 45 8 40 4 10 30 4 5 12 6 60 16 5 8 40 3 8 5 6 30 10 10 12 120 5 10 5 1 2 3 6 17 7 15 80 25 11 2 39 10 72 61 24 70 19 24 55 2 8 16 26

Multiples of 2, 3 and 6

Try to find multiplications from the 2x, 3x and 6x tables. An example has been done for you (6 x 3 = 18). There are 45 multiplications to find! Look in all directions.

 6 8 48 21 18 4 6 26 65 17 6 13 1 3 3 9 2 18 9 2 36 50 3 7 6 14 3 15 4 5 3 6 2 1 2 32 3 8 59 10 12 2 6 7 42 5 2 12 24 100 26 3 11 33 14 6 2 6 9 54 18 31 66 22 12 30 4 72 3 99 3 10 30 9 60 21 3 16 27 48 16 2 8 10 3 4 12 2 6 41 28 20 6 1 6 27 36 8 3 24

Multiples of 2, 4 and 8

Try to find multiplications from the 2x, 4x and 8x tables. An example has been done for you (8 x 7= 56). There are 45 multiplications to find! Look in all directions.

 3 11 99 56 7 8 6 48 10 13 8 28 32 8 4 6 24 18 2 20 24 4 14 47 28 32 9 4 5 80 12 7 12 16 8 2 44 5 10 9 2 3 6 4 1 4 11 8 72 4 4 2 2 4 9 36 4 22 9 36 8 1 8 32 4 64 24 5 8 40 2 8 7 56 8 12 96 6 20 16 16 11 64 8 2 4 48 80 10 8 25 88 33 4 2 8 12 6 2 2

Multiples 3, 6 and 9

Try to find multiplications from the 3x, 6x and 9x tables. An example has been done for you (9 x 7= 63). There are 45 multiplications to find! Look in all directions.

 3 9 8 72 16 63 45 23 1 24 8 3 26 15 7 9 9 81 6 72 24 24 33 9 5 3 15 4 6 19 9 6 11 66 14 3 3 12 36 25 12 4 3 7 21 1 9 9 11 99 108 10 12 6 2 2 34 27 9 3 30 72 36 42 18 3 6 7 50 13 5 8 6 48 4 3 10 9 90 54 6 3 9 12 108 9 60 63 9 31 2 20 54 17 41 27 38 6 22 81

An extra challenge

Try to find multiplications from the 7x, 10x and 11x tables. An example has been done for you (7 x 7= 49). There are 45 multiplications to find! Look in all directions.

 14 7 2 56 7 8 34 66 42 88 7 4 28 9 11 12 132 6 8 17 8 5 63 110 55 77 7 11 1 11 56 42 35 11 70 13 9 66 7 2 77 6 5 10 50 99 49 7 7 22 9 7 7 49 1 2 120 40 44 23 10 11 11 121 8 10 80 4 100 57 90 77 99 21 12 20 11 10 6 60 16 63 8 7 2 14 10 3 30 15 7 12 84 3 11 33 110 7 3 21

Can you make a multiplication search for multiples of 3 and 4.

These problems were sourced by
North East Lincolnshire's Numeracy Team

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