1. A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number \( n \) is formed by writing all the square numbers between 0 and 10 in a descending order. (a) Find \( \mathrm{mI}-\mathrm{n} \). (b) Express \( (\mathrm{m}-\mathrm{n}) \) as a product of its prime factors.

б) \( \frac{8}{9}-\frac{2}{3} \cdot \frac{5}{6}= \)

64. \( 3 \frac{1}{3} \) грядки зібрали 4 кг моркви. Скільки кілогра- мів моркви зібрали з усієї грядки?

Ana caminó 4.2 kilómetros el lunes y 3.8 kilómetros el martes. ¿Cuántos kilómetros caminó en total durante los dos días?

A store sells 2.75 liters of juice in one bottle and 1.25 liters in another. How many liters of juice do you have altogether?

4. Üç basamaklı 5 doğal sayının her birinin birler basamağı 1 azaltılır, onlar basamağı 1 artırıııra bu 5 sayının toplamı ne kadar artar? \( \begin{array}{lllll}\text { A) } 5 & \text { B) } 9 & \text { C) } 27 & \text { D) } 45 & \text { E) } 90\end{array} \)