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Four operation application problems in the second volume of fourth grade mathematics
1. The fruit shop sells 630 kilograms of fruit a week, so how many kilograms of fruit do you buy in 12 days? (Divide before closing)

2. With a piece of land, you can harvest 420 Jin of grain a month (calculated in 30 days). How many catties can you harvest in two months and three days?

*3. There are two baskets of fruit. The first basket weighs 27 kilograms, which is 9 kilograms heavier than the second basket. The second basket is cheaper than the first one. 36 yuan, how much is it per kilogram of fruit?

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