Descompose in product of prime numbers. Factorice Time Trial
Instructions
- Remember it is a matter to practice mental calculation, so try not need to write anything to help you working this out.
- Think about the whole decomposition and write it using the "mini·keyboard" included.
- To increase your speed, it is not neccesary to write the exponent when it is 1. For example, we can write 5 instead of 51.
- It is neither mandatory to order the prime numbers on the decomposition.
- But it is mandatory to write them as powers. For example, in order to write 9, we must insert 32, since 3·3 will be considered incorrect.
Of course, we shall only use prime numbers. For example, 6=2·3·1 will be considered to be wrong, as well as 20=4·5.
- In order to gain time, consider that it is not neccesary for you to correct each exercise one by one. You can wait until finishing, when all the activities will be corrected at the same time.
- Before starting, we can choose the available time to fill the worksheet.
- Each sheet will be asigned a mark out of 100 points after finishing it.
- first 5 correct calculations are worth 10 points each.
- from that on, each will be worth 5 points.
- also, each mistake cancels one correct answer.
- if you try several sheets, your highest mark will be kept.