In this worksheet, we will practice using rounding and compatible numbers to estimate the product of two decimal numbers.

**Q2: **

Engy wants to buy a pair of jeans that cost $49.99. The sign on the display says that the jeans are off. Which expression can be used to estimate the discount?

- A
- B
- C
- D
- E

**Q3: **

Which of the following is closest to the result of after rounding one of the two numbers to 10, 100, or 1,000?

- A284.26
- B 28,426
- C28.426
- D 2,842.6
- E 284,260

**Q4: **

The average person blinks about 900 times an hour.

By rounding the number of hours in a day to the nearest ten, estimate how many times a person blinks in a day.

Is this estimate more or less than the actual number of times a person blinks in a day?

- ALess
- BMore

**Q5: **

Nada’s shower uses 7.8 litres of water per minute.

By rounding the number of litres to the nearest whole number, estimate how many litres she will use if her shower lasts 9 minutes.

Calculate exactly how many liters of water a 12-minute shower will consume.

- A 93.6 litres
- B 78.3 litres
- C 104.4 litres
- D 70.2 litres
- E 163.8 litres