6. Algebra
iGCSE (2021 Edition)
6.04 Substitution
Interactive practice questions
Consider the pattern:
$11,22,33,44,\dots$11,22,33,44,…
Fill in the next three numbers in the sequence.
$11,22,33,44,\editable{},\editable{},\editable{}$11,22,33,44,,,
Easy
< 1min
Consider the pattern:
$15,23,31,39,\dots$15,23,31,39,…
Easy
< 1min
Consider the pattern:
$32,27,22,17,\dots$32,27,22,17,…
Medium
< 1min
Consider the pattern:
$9,16,25,36,\dots$9,16,25,36,…
Hard
2min
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