Combining functions
You can combine two or more functions to change a number in different ways.
input | function 1 | function 2 | output | ||
7 | ![]() | +4 | x3 | ![]() | 33 |
8 | ![]() | -3 | x5 | ![]() | 25 |
4 | ![]() | x4 | -10 | ![]() | 6 |
Can you work out the output from these combined functions?
input | function 1 | function 2 | output | ||
12 | ![]() | -3 | x4 | ![]() | ? |
12 | ![]() | x4 | -3 | ![]() | ? |
8 | ![]() | +20 | ÷7 | ![]() | ? |
7 | ![]() | x5 | -5 | ![]() | ? |
-8 | ![]() | +50 | ÷7 | ![]() | ? |
100 | ![]() | ÷4 | -5 | ![]() | ? |
28 | ![]() | +20 | ÷8 | ![]() | ? |
-10 | ![]() | x5 | +100 | ![]() | ? |
40 | ![]() | -50 | x7 | ![]() | ? |
Look at the first two above. The functions are the same but they are carried out in a different order.
Does this make a difference to the output?
Try carrying out some of the other combined functions in a different order to see how the output is affected.