Picturez plzz dont answer this if you dont have pictures

2.91+1.8=4.71

and im guessing that you need to shade in the boxes sooo... you need to shade in 4 whole boxes and 71% of the fifth box...since the boxes are 10 by 10
>>shade in 7 rows and shade in one box in the 8th row

hope this helps

No because if you do the higher number minus the lower number you will get a positive. if you do it the other way around you will get a negative number

Documentation and time management