35% of Mr. Chen's class loves the new Gym. He has 80 students in his class. How many of Mr. Chen’s students did not like the gym?

100 - 35 = 65

65% did not like the gym class.

So 65% of 80 is 52.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post