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# Small Decimal Rounding to a Leading Digit

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Practice Small Decimal Rounding to a Leading Digit
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Estimate Decimal Products and Quotients Using Leading Digits

Have you ever had to figure out a dilemma involving money? Take a look at this situation.

### Guided Practice

Here is one for you to try on your own.

$120.0045 \div 6.237$

Solution

First, we take only the leading digits and rewrite this problem.

$120 \div 6$

Now our work is quite simple.

$120 \div 6 = 2$

Our estimate is $2$ .

### Explore More

Directions : Estimate each product or quotient by using leading digits.

1. $35.0012 \div 5.678$

2. $5.123 \times 11.0023$

3. $12.0034 \div 4.0012$

4. $12.123 \times 3.0045$

5. $48.0012 \div 12.098$

6. $13.012 \times 3.456$

7. $33.234 \div 11.125$

8. $12.098 \times 2.987$

9. $4.769 \times 8.997$

10. $14.98 \div 7.002$

11. $24.56087 \div 8.0012$

12. $45.098 \div 5.0098$

13. $9.0987 \times 9.0001$

14. $34.021 \times 4.012$

15. $21.0098 \times 2.0987$

16. $14.231 \times 3.7601$

17. $144.0056 \div 12.0112$

### Vocabulary Language: English

Dividend

Dividend

In a division problem, the dividend is the number or expression that is being divided.
divisor

divisor

In a division problem, the divisor is the number or expression that is being divided into the dividend. For example: In the expression $152 \div 6$, 6 is the divisor and 152 is the dividend.
Estimate

Estimate

To estimate is to find an approximate answer that is reasonable or makes sense given the problem.

The leading digit of a decimal number less than one is the first digit to the right of the decimal point that is not a zero.