Find all the answers to the first volume of mathematics in the sixth grade of primary school with 100! ! !

Six: (1) 60 * 80 = 4800 4800 *15% = 720 4800+720 = 5520a: The expanded playground area is 5520m2.

(2)720*200= 144000 (yuan) A: The input of supply and demand is 144000 yuan.

7: 4.2/( 1+403%) is about 0.83 (100 million yuan) A: 1997 I called 83 million users.

Eight: (4.8-4)/4=20% A: Increase production by 20%.

9: 237/( 1+27%) is about equal to 18.7 A: Five years ago, I said that the per capita housing area of urban residents was 18.7 square meters.

Ten: (1)56/ 105 is about equal to 53.4%. A: 53.4% of the valid votes in Beijing.

(2)(56-22)/22= 154% A: Beijing has more votes than Toronto 154%.

(3) Ask yourself questions. The answer to my question is: When Istanbul stands in Paris?

18/9=200% A: Istanbul is 200% of Paris.

I'm in grade one. I just did this problem. I hope this is your problem. If so, don't forget to give it to me! ! ! !