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WorksheetsCODES AND DECODES
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Use the samples to answer questions 1-5.
36 Q 4 = (36-3) ÷ 6 = 5 21
54 Q 9 = (54-8) ÷ 4 = 11 21
1. Find 86 Q 5
a)
13 21
b)
13 32
c)
13 43
d)
14 31
2.
2. Find 65 Q 1
a)
13 21
b)
66
c)
13
d)
32 31
3.
3. If 38 Q * = (38-6) ÷ 8, what is * ?
a)
7
b)
4
c)
6
d)
3
4.
4. If 43 Q * = (43-5) ÷ 3, what is * ?
a)
7
b)
4
c)
6
d)
3
5.
5. 72 Q 8 = (72 - a) ÷ 2, what is a ?
a)
3
b)
4
c)
6
d)
7
6.
In a coded message dangerous is represented as 587926301. use the information to answer questions 6-10.
6. What word is represented by 58926?
a)
DAGEM
b)
BAGRE
c)
DAGER
d)
ADGER
7.
7. How would RUNNER be coded?
a)
607762
b)
607276
c)
607726
d)
687729
8.
8. ROADS will be coded as……..
a)
63853
b)
63855
c)
63815
d)
63851
9.
9. 98791 stands for ……….
a)
GANSG
b)
GANGE
c)
GANGS
d)
AGNAS
10.
10. Calculate the value of (D + N) X E.
a)
14
b)
24
c)
6
d)
28
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