On average 43 min an
Berational hours a day
cek. How far will ill
Dy
Highlight all the numbers that are diVISIDIU
by 3 (every third number), except 3.
4. Highlight all the numbers that are divisible
by 5, except 5
This technique of finding the prime numbers is
known as 'The Sieve of Eratosthenes, after the
Greek mathematician Eratosthenes.
8
9
10
557 dollars a day plus 370
tourist hires a car for
17
17
| 18
18
19
20
1452 km.
st of hiring
27
28
29
30
of pears at 850 a kg. He
ars at $1.40 a kg and the
$1.05 a kg.
d Tom make?
1 2 3 4 5 6
11 12 13 14 15 16
21 22 23 24 25 26
31 32 33 34 35
36
| 41 42 43 44 45 46
51 52 53 54 55 56
1 61 62 63 | 64 | 65 |
66
71 72 73 74 75 76
81 82 83 84 85 86
91
93
95
96
7. Explain why in the 'Sieve of Eratosthenes' above, it!
67
88
89
90
87
97
94
100
92
11.1. L. 12.25 and 7 and