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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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Outcomes

0580C2.1B

Substitute numbers for words and letters in formulae.

0580E2.1B

Substitute numbers for words and letters in formulae.

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