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.

What is the purpose of estimation in Tiffany's shopping scenario?

• To find discounts on the items.

• To compare prices at different stores.

• To calculate the exact total cost of items.

• To determine if she can afford the items without exact calculations.

How does Tiffany round the price of the jacket?

• She keeps it at $25.

• She rounds $25 up to $30.

• She rounds $25 up to $40.

• She rounds $25 down to $20.

What is the estimated total cost of the jacket, boots, snow hat, and mittens?

• $60

• $70

• $80

• $90

How much does Tiffany estimate the scarf will cost after rounding?

• $30

• $25

• $20

• $15

What is the total estimated cost including the scarf, and does Tiffany have enough money?

• $90, and she has enough money.

• $80, and she does not have enough money.

• $110, and she does not have enough money.

• $100, and she has just enough money.