Answer:
2 times 2 times 2 times 5
Step-by-step explanation:
You can work this out using elimination. 2 X 2 X 4 X 5 = 80. So you immediately know it isn't that one
2 X 20 is a possible answer because it equals to 40 however the 20 is still there meaning that wouldn't work.
2 X 5 = 10 So that would work either
