# Lesson Worksheet: Estimating Products Mathematics

In this worksheet, we will practice estimating products by rounding numbers or by using compatible numbers.

**Q1: **

A teacher asked their students to estimate the product of . Khalid got 120, whereas Joud got 90. Estimate the product yourself and decide which student is correct.

- AKhalid
- BJoud

**Q2: **

Using compatible numbers, we can estimate the result of as follows:

Using compatible numbers, complete the following multiplication sentence:

- A15, 42
- B16, 40
- C15, 40
- D20, 40
- E10, 40

Fill in the blank: The estimated product is .

- A400
- B630
- C600
- D800
- E640

**Q3: **

Which of the following is an estimate for using compatible numbers?

- A1 365
- B1 386
- C1 320
- D1 300
- E1 400

**Q4: **

Which of the following is an estimate for using compatible numbers?

- A2 046
- B1 800
- C2 100
- D2 275
- E1 950

**Q5: **

Consider the number line. Estimate the product of using compatible numbers.

**Q6: **

Which of these pairs of numbers would give the best estimate for the product ?

- A20 and 20
- B10 and 15
- C10 and 20
- D15 and 20

**Q7: **

Find the best estimate for using compatible numbers.

**Q8: **

Maryam and Hoor want to find an estimated product for . Who has a better estimation?

- AMaryam
- BHoor

**Q9: **

Use two of the following numbers to help you find the best estimate for .

**Q10: **

Which of these is the best estimate of the product of ?

- A
- B
- C
- D
- E