Urgently ask for a math problem in the fourth grade of primary school

1, 9 yuan can reduce the money spent on 108, which means that * * * bought 108/9= 12 football;

If you buy six less, you can spend less 108, which means that the unit price purchased by the school is 108/6= 18 yuan.

So the school actually spent 18* 12=2 16 yuan.

2.9 The total weight of each box of oranges is 9+12+14+18+21+24+25+28 =167kg.

Because A takes twice as many kilograms as B, the sum of the kilograms taken by two people can be divisible by 3.

167 divided by 3 equals 55 plus 2.

Therefore, the remainder of the remaining box divided by 3 is also 2.

These 9 boxes of oranges weigh only 14kg, and the remainder of that box divided by 3 is 2, so the remaining boxes are 14kg.