Calculator Activities

This week Primary 3/4 have been learning how to use the calculator in Maths. We having been learning how to do +,-,x sums.








Today we used our skills to do a number of problem solving activities.

Task 1

Task 1

You will need a calculator and a pencil and some paper.

You may only use these buttons:

2  3  4  5  6  7  8  9  +  -  =

Can you show 10 on the calculator? Write down how you did it.

Find lots of different ways you can make 10. Write them all down.

Some of the answers;

5 + 5
2 + 8
3 + 7
4 + 6
2 + 2 + 2 +2 +2
3 + 5 + 2
24 - 9 - 5
9 + 3 - 2
99-89
3 + 3 + 3 + 3 +3 -5

Task 2

Your calculator has a busted 6 button.

Find 5 ways for making the answer 66.

You can use the +, -, =

Answers

David and Ben's answers

33 + 33
70 - 4
90 - 24
100 - 34
80 - 14

The class went on do some code breaking activities using the calculator to make words.

Posted by Mr Atkinson