Percentages Without A Calculator

A Maths Starter of The Day

  540 600 1260 31140
10%        
50%        
25%        
331/3%        
75%        
90%        

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Keywords: Starter | Mental Methods | Percentages

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Answers
 

 

 540 600 1260 31140
10% 54 60 126 3114
50% 270 300 630 15570
25% 135 150 315 7785
331/3% 180 200 420 10380
75% 405 450 945 23355
90% 486 540 1134 28026

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