*). This activity has students find all the possible numbers that can be made using three numbers and any operations. There is a handy hint button, which reveals how many different answers there are, and a answer button that shows all the numbers that can be made. You can generate as many as you like, change the range that the answers must belong to, and even use your own values.*

**QQI***). In this one, students are asked to use the digits 1-9 and add them together to make a target number. The challenge is to find all the different ways to do this, using unique digits in each sum. Again, there is a hint button revealing how many different ways there are to make the target number, and an answer button that shows them all. You can choose what range you want the target number to be in, as well as whether they can use 3, 4 or 5 numbers. You can also use your own target number.*

**QQI***). In this one, students are given a sum of numbers and the answer. However, all the signs are missing, and they must input the correct symbol between each digit to get the answer. There is a hint which gives them the first sign that is missing, and the answer is also revealable (though the answer may not be unique, this can generate a nice discussion). You can choose the range of the numbers in the sum, as well as whether you want 3, 4 or 5 numbers. There is also the choice to work from left to right one step at a time, or to use BIDMAS (or the correct order of operations).*

**QQI**