12. Von den 441 Tieren auf dem Bavernhof von Familie Hagendorn sind \( \frac{2}{7} \) Rinder. Es sind viermal so viele Schweinebeine wie Hühnerbeine auf dem Hof und halb so viele Pferdebeine wie Rinderbeine. Wie viele Schweine und wie viele Hühner sind auf dem Bauernhof zu Hause?

Example 3 If a student saves Ghe 1 on the first day, Ghe 2 on the second day, Ghe 3 on the thit day and so on. What will be his total saving in 365 days?

If the sum was 24 and you turned over an 8 , how would you find the difference? share your strategy.

If \( 3^2 \) is calculated, what is the result?

The capacity of three containers is 30 liters, 45 ers and 60 liters. Determine the capacity of the eatest container which can be used to fill each the container in exact number of times?

If the sum is 18 and you turned over a 7 , how would you find the new sum? Share your strategy.