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A close pretend budget · my responseYear 4 Maths · T2 W11–12 · Assessment / Own / C later

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After additive financial modelling, estimate limits and exact comparisons have been taught, e.g. Day 59. Whole-dollar interpretation is checked; if unfamiliar, teach equivalent card-count target separately.

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A fictional Australian-dollar budget is $300. Two invented whole-dollar costs are $148 and $153. There are no other costs in this model. These are not current prices, personal finances or a purchase invitation.

Write a model for the combined cost and its comparison with the budget.

Give a nearest-ten estimate and state its purpose.

Calculate exactly and decide whether it fits. State the money left or excess.

Give an exact check and explain why the rough estimate alone was insufficient here.

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