Priscilla Ng's answer to Aaisha's Primary 5 Maths Whole Numbers Singapore question.
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The model drawing for 'Before' is developed by working backwards from the 'After' model.
25 is subtracted from 337 to make 4 units for 1st shelf and 48 is added to 337 to complete 4 units for 3rd shelf.
Hope the model drawing helps you.
25 is subtracted from 337 to make 4 units for 1st shelf and 48 is added to 337 to complete 4 units for 3rd shelf.
Hope the model drawing helps you.
Date Posted:
5 years ago
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