Section

Problems

E.S.O.

1.1

1,3,5,9,11,15,17,19,21,23,25,27,31,35,37,39,41,43,47,49,51

A

1.2

1,3,7,9,11,13,15,19,21,23,25,29

C,G

1.3

1,3,5,7,9,11,15,17,19,23,25,27,31,33,34,37,41,45,47,49,53,59,63,65,69

B,C,G

A3

1.4

1,3,5,7,11,13,15,17,21,27,33

C

2.1

3,5,7,9,11,13,15,17,19,23,25,27,29,31,33,37,41,43,45,47,51,55,59,65

A

2.3

1,3,5,7,9,13,15,17,21,23,25,29,33,35,39,41,43,45,47,51,53,55,57,59,65,69,73,77,85,95

B,C

2.5

1,3,5,9,11,17,19,23,27,31,33,39,43,47,53,55,57,61,73,79,81

B,C

3.1

1,3,5,7,9,11,19,21,23,25,29

D,E

3.2

3,5,9,13,15,17,19,23,25,27,29,31,33,35,39,41,47,53,57

E

3.3

3,5,7,9,11,13,15,17,19,21,23,25,27,29,35,41

E

3.5

1,5,9,15,19

E

3.6

1,3,7,9,11,15,19,21

D,E

4.1

3,5,7,9,11,15,17,19,21,23,27,29,31,35,37,41,45,47,49,55,59,61

F

4.2

1,3,9,13,15,17,19,21,23,25,27,33,39,41,43,45,49,53,57,61,65,73,79,83

F

4.3

1,7,9,13,15,17,21,25,27,29,31,33,35,39,43,47,49,51,57

F

4.4

1,3,5,11,13,17,23,39,43,47,49,53,59,63,67

F

5.1

1,3,5,7,9,11,15,17,21,25,27,29,31,33,35,41,43,47,49,51,57,61,63,66,69,71,73

D,E

5.3

1,5,7,9,11,15,17,19,21,25,29,31,35,41,45,47,51

H

5.4

1,3,7,9,11,13,17,19,21,23,31

H

6.1

1,3,5,7,9,13,15,17,21,25,29,33,37,47,49

G

6.2

1,3,5,9,11,13,15,17,21,25,29,31,40,43

G

6.4

1,3,5,7,9,11,13,15,17,21,23,27,31

J

6.5

1,3,5,7,9,11,15,17,19,21,23,25,27,29,33,37,41,49,55

J

7.1

1,3,5,7,9,11,13,15,17,19,21,25,29,33,37,39,41,43,45,51,53,59,61

K

7.2

1,3,5,11,15,17,25

K

7.3

1,3,5,7,9,13,15,17,21,23,25,29,35,39

L

7.4

1,3,5,7,11,13,17,19,23

M