Solve it...!     Numeracy problems to solve for Key Stage 1, 2 and 3

 Key Stage 1     Solve it...!     Calculator stories and puzzles

Did you know that your calculator can make words? All you have to do is turn the calculator upside down and certain digits look like letters. The most common are:-

1 - I

3 - E

4 - h

5 - S

6 - g

7 - L

8 - B

O - 0

Task A

What do they say?

Here are some simple words for you to work out.
Enter the number and turn your calculator upside down to read the word.

38 - BE
7738 - BELL
37818 - BIBLE
378806 - GOBBLE
77345 - SHELL
3045 - SHOE
38076 - GLOBE

An extra challenge

Can you make some more words. Challenge a friend to find more than you.

Task B

A calculator puzzle

TARGET 100

Can you make your calculator show '100' by using only these keys?

  [+] [-] [=]

You can press them in any order and as many times as you like. Challenge your friend to do it in less presses than you.

Can you do it in less than 10 'presses'?

 Key Stage 2  Solve it...!  Can you identify which coins are which?

Test your strategies. Each coloured spot represents a different British coin.

Task A

The coins on the graph are from 1p to 50p. You need to think about size and value of the coins. Try it without looking at the coins first and then use real coins to check.

Task B

The coins this time are from 1p to a £5 coin. You need to think about size and weight of the coins. Try without using the coins to start with and then use the actual coins to help you or to check whether your right.

Try this activity on your friends and family.

An extra challenge

You may like to make up your own activity similar to Task B using a set of foreign coins and challenge someone to find which coins are which.

 Key Stage 3  Solve it...!  Complete the Cross-grid

(You can write the answers in the cross-grid above!!)

 ACROSS DOWN 1. Find the total of 799 and 764 Find the 1/3 of 153 shared by three 3. Subtract 248 from 534 2. 17 is a quarter of what number? 5. What number is seven times larger than 7? 3. Increase the total of 78 and 56 by 158 6. Decrease nine hundred and six by 334 7. How many times can four be taken away from eight hundred and sixty-four? 8. To the sum of 37 and 143 plus 949? 10. Double 3 and make the answer 7 times bigger 12. What is the product of seven and sixty-eight? 11. What number is added to 89 to make 121? 13. Work out a third of thirty-six

Now using the grid:

Add together all identical digits and increase this number by 38. Write the value you obtain in the first row of squares below.

(You can write in the boxes below!!)

 41 50 47 50 48 56 59 54 65 U R O R N E T M A

Use the code panel to find their letter equivalent, write in row 2

 CODE PANEL 65 = A  48 =N  62 = H  50 = R  54 = M  47 = O  41 = U  74 = G 59 = T  56 = E

An extra task

Unscramble the letters in row 2 to find a nine - letter mathematical word. - Numerator

 Links on this page: Key Stage 1 Key Stage 2 Key Stage 3    These problems were sourced by North East Lincolnshire's Numeracy Team

Back to the top 