Transcript Da Vinci Codes. - primaryresources.rmplc.co.uk

Da Vinci Codes.
Shirley Sides. 2006.
x=7
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•
•
•
x+6=
x+13=
2x+3=
2x+15=
13
20
17
29
y=12
•
•
•
•
3y+8=
2y-9=
4y-20=
2y/3=
44
15
28
4
x=4
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•
•
•
•
x+y=
2x+3y=
x+4y=
2y-x=
3x-y=
10
26
28
8
6
y=6
x=9 What is y?
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•
•
•
x+y=13
2x+y=20
2x+y=25
3x+y=50
4
2
7
32
What is x and y?
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•
•
•
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2x+y=11
x+3y=25
3x+y=27
2x+2y=22
x+y=100
Could your make some
codes up for a friend?
• You can use any letter to stand for a
number.
• Don’t use more than 2 different letters.
• Try some multiply and divide.