KS2 Primary Maths Age 9-13 - Ratio, Proportion and Algebra: Formulas and Expressions - Explained

The video tutorial explains how to determine the initial amount of money Lara had before spending on a drink and a sandwich. It involves calculating the total spent, understanding that 3/4 of her money was left, and deducing that the spent amount represents 1/4 of her total money. By multiplying the spent amount by four, the initial total is found to be £11.40. The tutorial emphasizes understanding fractions and basic arithmetic operations to solve the problem.

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