Question

lesson check

1. estimate how many yardsticks will be about the same length as a semi-truck.

__ yardsticks, or __ yards

1. estimate how many yardsticks will be about the same length as a hockey stick.

__ yardsticks, or __ yards

spiral review

1. nur has 3 quarters, 1 dime, and 2 nickels. what coin does she need to have 1 dollar?

________

1. what is the total value of 1 quarter, 4 dimes, and 3 pennies?

______, or ______ cents

1. there are 57 apples and 39 oranges on the lunch counter. how many more apples than oranges are there?

____ more

1. what is the sum?

$472 + 286 = ____

Explanation:

Step1: Estimate semi-truck length

A typical semi-truck is ~20-25 feet. 1 yard = 3 feet, so $\frac{21}{3}=7$ (estimate).

Step2: Estimate hockey stick length

A hockey stick is ~4 feet, so $\frac{3}{3}=1$ (estimate, rounded to 1 yard).

Step3: Calculate Nur's current coins

3 quarters = $3 \times 25 = 75$ cents, 1 dime = 10 cents, 2 nickels = $2 \times 5 = 10$ cents. Total: $75+10+10=95$ cents.

Step4: Find needed coin for $1

$100 - 95 = 5$ cents, which is a nickel.

Step5: Calculate total coin value (Q8)

1 quarter =25 cents, 4 dimes = $4 \times 10=40$ cents, 3 pennies=3 cents. Total: $25+40+3=68$ cents.

Step6: Find apples vs oranges difference

$57 - 39 = 18$

Step7: Add the two numbers

$472 + 286 = 758$

Answer:

1. 7 yardsticks, or 7 yards
2. 1 yardsticks, or 1 yards
3. A nickel
4. $0.68, or 68 cents
5. 18 more
6. $472 + 286 = 758$