Shopping for Winter (Solve word problems involving estimation of sums.)

The video tutorial teaches how to use estimation to determine if you have enough money for purchases. Tiffany, with $100, needs to buy winter clothes and considers adding a scarf to her list. She uses rounding to the nearest ten to estimate costs and mentally calculates the total. Initially, her estimated total is $70, leaving room for the scarf, which she estimates at $20. With a total of $90, she confirms she can afford everything. The lesson demonstrates solving word problems using estimation of sums.

Why does Tiffany decide to round the prices to the nearest ten?

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After estimating, does Tiffany have enough money to buy the scarf? Explain your reasoning.

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