Number 4
1 mark · EasyFind 25% of $640.
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160 (±0)
Common mistakes: dividing by 25 instead of multiplying; multiplying by 0.25, but arithmetic error
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Marking points
M1 · 1 mark · Correct value ($160) given.
Worked solution
25% of $640 = 0.25 × 640 = $160