Estimate products of whole numbers

Estimate a Product – Front-End Rounding

2 pts

volume_mute

Use front-end rounding to estimate the product: \(59 \times 334\)

16,000

17,000

18,000

19,000

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Correct Answer

Explanation

Estimate the Product

2 pts

volume_mute

Use front-end rounding to estimate: \(74 \times 488\)

28,000

32,000

35,000

40,000

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Correct Answer

Explanation

Estimate: Two-Digit Times Three-Digit

2 pts

volume_mute

Use front-end rounding to estimate: \(42 \times 763\)

24,000

28,000

32,000

40,000

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Correct Answer

Explanation

Estimate: Rounding Both Factors

2 pts

volume_mute

Use front-end rounding to estimate: \(88 \times 512\)

40,000

45,000

50,000

55,000

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Correct Answer

Explanation

Estimate: Three-Digit Times Four-Digit

2 pts

volume_mute

Use front-end rounding to estimate: \(312 \times 4{,}876\)

1,000,000

1,500,000

2,000,000

2,500,000

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Correct Answer

Explanation

Complete the Front-End Rounding Definition

1 pts

Both factors are rounded to their (1) place value so that all but their (2) digit is zero. Then we multiply the rounded factors.

Please drag and drop the selected option in the right place or type it instead

largest

first

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Correct Answer

Explanation

Why Do We Use Estimation?

1 pts

volume_mute

Estimation is used to find:

An exact answer to a multiplication problem.

An approximate answer to a problem.

The number of zeros to attach.

The largest place value of each factor.

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Correct Answer

Explanation

Which Rounded Values Are Correct?

2 pts

volume_mute

When using front-end rounding to estimate \(59 \times 334\), which rounded values are correct? Select all that apply.

\(59 \to 60\)

\(334 \to 300\)

\(59 \to 50\)

\(334 \to 330\)

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Correct Answer

Explanation

Sort the Steps of Front-End Estimation

2 pts

Please drag and drop the options to sort them

Drag the steps for estimating a product using front-end rounding into the correct order.

Multiply the two rounded factors.

Identify the largest place value of each factor.

State that the result is an estimate.

Round each factor to its largest place value.

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Correct Answer

Explanation

Which Estimate Is Closest to the Exact Answer?

2 pts

volume_mute

The exact answer to \(67 \times 834\) is 55,878. Which front-end rounded estimate is closest?

\(70 \times 800 = 56{,}000\)

\(60 \times 800 = 48{,}000\)

\(70 \times 900 = 63{,}000\)

\(60 \times 900 = 54{,}000\)

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Correct Answer

Explanation

Estimate: 25 × 598

2 pts

volume_mute

Use front-end rounding to estimate: \(25 \times 598\)

10,000

12,000

15,000

18,000

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Correct Answer

Explanation

Classify Estimates as Over or Under 10,000

2 pts

After front-end rounding, drag each multiplication into the correct category.

drag and drop the selected option to the right place

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Correct Answer

Explanation

Estimate: Both Three-Digit Numbers

2 pts

volume_mute

Use front-end rounding to estimate: \(445 \times 789\)

280,000

320,000

350,000

400,000

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Correct Answer

Explanation

Is the Estimate Greater or Less Than the Exact Answer?

2 pts

volume_mute

For the problem \(59 \times 334\), the estimate is \(18{,}000\) and the exact answer is \(19{,}706\).

The estimate is ______ the exact answer, because both factors were rounded ______.

less than … down

greater than … up

less than … 59 up and 334 down

greater than … 59 down and 334 up

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Correct Answer

Explanation

What Is This Rounding Strategy Called?

1 pts

When we round each factor to its largest place value before multiplying, the strategy is called front-end ______.

Have fun and play hangman game to guess the word

Use the alphabet below to guess the word, then enter it in the input field

You have lives

Enter your answer

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Estimate a Product – Front-End Rounding

Correct Answer

Explanation

Estimate the Product

Correct Answer

Explanation

Estimate: Two-Digit Times Three-Digit

Correct Answer

Explanation

Estimate: Rounding Both Factors

Correct Answer

Explanation

Estimate: Three-Digit Times Four-Digit

Correct Answer

Explanation

Complete the Front-End Rounding Definition

Correct Answer

Explanation

Why Do We Use Estimation?

Correct Answer

Explanation

Which Rounded Values Are Correct?

Correct Answer

Explanation

Sort the Steps of Front-End Estimation

Correct Answer

Explanation

Which Estimate Is Closest to the Exact Answer?

Correct Answer

Explanation

Estimate: 25 × 598

Correct Answer

Explanation

Classify Estimates as Over or Under 10,000

drag and drop the selected option to the right place

Correct Answer

Explanation

Estimate: Both Three-Digit Numbers

Correct Answer

Explanation

Is the Estimate Greater or Less Than the Exact Answer?

Correct Answer

Explanation

What Is This Rounding Strategy Called?

Correct Answer

Explanation

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