Pegging is a great memory technique to remember large number of numbers or facts. It just takes 20 mins to practice but would help you life long. 
Here is the memory aid.
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0
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z,s
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1
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t,d
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2
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–
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n
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3
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–
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m
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4
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–
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r
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5
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–
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L
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6
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–
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j, ch, sh
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7
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–
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k, g, or c
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8
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ƒ, v
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9
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b, p
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Just add any vowels – a,e,i,o,u in between to make nouns and list of nouns into a story. You can add any number of vowels in between.
Example:
Mnemonic for remembering the order of streets in Manhattan between 2nd Ave and 5th Ave:
3 Lost People Meet
3rd Ave.
Lexington Ave.
Park Ave.
Madison Ave.
Maverick 