Kiran is using long division to find \(696 \div 12\).

He starts by dividing 69 by 12. In which decimal place should Kiran place the first digit of the quotient (5)?

Here is a long-division calculation of \(917 \div 7\).

Example division problem 917 divided by 7. Inside the division bar is 917. 7 divides into 9, one time. Subtract 7 for a remainder of 2. Bring down the 1. 7 divides into 21, three times. Subtract 21 from 21 for a remainder of 0. Bring down the 7. 7 divides into 7, one time. Subtract 7 for a remainder of 0. The quotient is 131.

1. There is a 7 under the 9 of 917. What does this 7 represent?
2. What does the subtraction of 7 from 9 mean?
3. Why is a 1 written next to the 2 from \(9-7\)?

Han's calculation of \(972 \div 9\) is shown here.

Division problem. Under the division house is 972. To the left of the house is 9. Above the house is 180. Below 972, row 1 is minus 9. horizontal line, row 2, 7. row 3, minus 0, horizontal line, Row 4, 72. Row 5  minus 72. horizontl line. Row 6. 0. 

1. Find \(180 \boldcdot 9\).
2. Use your calculation of \(180 \boldcdot 9\) to explain how you know Han has made a mistake.
3. Identify and correct Han’s mistake.

Find each quotient.

Suppose one ounce of craft paint will cover 1.2 square feet. How many square feet would 14.25 ounces of craft paint cover?

The mass of one coin is 16.718 grams. The mass of a second coin is 27.22 grams. How much greater is the mass of the second coin than the first? Show your reasoning.