Practice questions available in **McGraw Hill Math Grade 6 Answer Key PDF Lesson 12.3 Estimating Decimal Products** will engage students and is a great way of informal assessment.

## McGraw-Hill Math Grade 6 Answer Key Lesson 12.3 Estimating Decimal Products

**Exercise Estimate**

Question 1.

23.01 × 8.1

Answer: 186.381

There are 3 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 3 decimal places.

So, the product is 186.381

Estimated product is 186

Question 2.

$6.75 × 4.73

Answer: 31.9275

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is 31.9275

Estimated product is 32

Question 3.

101.51 × 4.5

Answer: 456.795

There are 3 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 3 decimal places.

So, the product is 456.795

Estimated product is 457

Question 4.

32.25 × 21.1

Answer: 680.475

There are 3 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 3 decimal places.

So, the product is 680.475

Estimated product is 680

Question 5.

$2.25 × 49.999

Answer: 112.49775

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 5 decimal places.

So, the product is $112.49775

Estimated product is $112.5

Question 6.

.230 × 4.657

Answer: 1.07111

There are 6 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 6 decimal places.

So, the product is 1.07111

Estimated product is 1

Question 7.

10.501 × $5.43

Answer: 57.02

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 5 decimal places.

So, the product is $57.02043

Estimated product is $57

Question 8.

45.45 × 21.21

Answer: 963.9945

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is 963.9945

Estimated product is 964

Question 9.

57.35 × .499

Answer: 28.61765

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

Rewrite the product with 5 decimal places.

So, the product is 28.61765

Estimated product is 29

Question 10.

.867 × $19.3

Answer: $16.7331

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is $16.7331

Estimated product is $17

Question 11.

.75 × 25.43

Answer: 19.0725

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is 19.0725

Estimated product is 19

Question 12.

1.95 × 36.36

Answer: 70.902

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is 70.902

Estimated product is 71

Question 13.

23.986 × 11.111

Answer: 266.508446

There are 6 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 6 total decimals.

So, the product is 266.508446

Estimated product is 266.5

Question 14.

22.989 × $13.89

Answer: $319.31721

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 5 total decimals.

So, the product is $319.31721

Estimated product is $320

Question 15.

1.8 × 1.982

Answer: 3.5676

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is 3.5676

Estimated product is 3.6

Question 16.

27.63 × $3.54

Answer: $97.8102

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is $97.8102

Estimated product is $98

Question 17.

10.1010 × 7.3

Answer: 73.7373

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 5 total decimals.

So, the product is 73.7373

Estimated product is $74

Question 18.

7.75 × 4.1

Answer: 31.775

There are 3 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 3 total decimals.

So, the product is 31.775

Estimated product is 32

Question 19.

17.11 × 1.499

Answer: 25.64789

There are 5 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 5 total decimals.

So, the product is 25.64789

Estimated product is 26

Question 20.

$19.45 × 1.73

Answer: $33.6485

There are 4 decimal places in both numbers.

Ignore the decimals and complete the multiplication operation.

So, rewrite the product with 4 total decimals.

So, the product is $33.6485

Estimated product is $34