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Follow number algorithms, use decision rules and describe the resulting patterns.
Free examples and worked answers. No account needed.
Practise the method.
Follow number algorithms, use decision rules and describe the resulting patterns.
Follow number algorithms, use decision rules and describe the resulting patterns.
Example 1
Follow this algorithm: start at 7; double the number; double it again; stop. Which number do you finish with?
Show worked answer
Answer: 28
- First double: 7×2=14.
- Second double: 14×2=28.
Example 2
An algorithm produces 3,13,23,33. It uses the same addition step each time. Which instruction continues this pattern?
Show worked answer
Answer: Add 10 each time
- Each difference is 10:13−3=10.
- The repeating instruction is add 10 each time.
Example 3
Follow this algorithm: start at 3; double the number; double it again; stop. Which number do you finish with?
Show worked answer
Answer: 12
- First double: 3×2=6.
- Second double: 6×2=12.
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