Chapter 8 - Fundamentals of Mathematics Solutions — Page 4

Problem 28

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 67 \cdot 42 $$

4 step solution

Problem 29

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $27 \cdot 473$

5 step solution

Problem 29

(Section 8.4) Use the distributive property to compute the product: 25 . 37 .

6 step solution

Problem 29

Use the distributive property to compute each product. $85 \cdot 110$

6 step solution

Problem 29

(Section 8.2) Estimate the sum using the method of rounding: $4,882+2,704$.

2 step solution

Problem 29

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 628 \cdot 891 $$

5 step solution

Problem 30

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $92 \cdot 336$

4 step solution

Problem 30

Use the distributive property to compute each product. $95 \cdot 12$

4 step solution

Problem 30

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 426 \cdot 741 $$

4 step solution

Problem 31

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 12 \cdot 814 $$

4 step solution

Problem 31

Use the distributive property to compute each product. $65 \cdot 40$

5 step solution

Problem 31

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 18,012 \cdot 32,416 $$

5 step solution

Problem 32

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $8 \cdot 2,106$

5 step solution

Problem 32

Use the distributive property to compute each product. $80 \cdot 32$

5 step solution

Problem 32

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 22,481 \cdot 51,076 $$

5 step solution

Problem 33

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $192 \cdot 452$

4 step solution

Problem 33

Use the distributive property to compute each product. $$ 30 \cdot 47 $$

5 step solution

Problem 33

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 287 \div 19 $$

4 step solution

Problem 34

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $374 \cdot 816$

5 step solution

Problem 34

Use the distributive property to compute each product. $$ 50 \cdot 63 $$

4 step solution

Problem 34

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 884 \div 33 $$

4 step solution

Problem 35

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 88 \cdot 4,392 $$

5 step solution

Problem 35

Use the distributive property to compute each product. $90 \cdot 78$

4 step solution

Problem 35

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 1,254 \div 57 $$

4 step solution

Problem 36

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 126 \cdot 2,834 $$

4 step solution

Problem 36

Use the distributive property to compute each product. $40 \cdot 89$

5 step solution

Problem 36

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 2,189 \div 42 $$

4 step solution

Problem 37

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $3,896 \cdot 413$

4 step solution

Problem 37

(Section 3.5) Find the greatest common factor of 360 and 3,780 .

5 step solution

Problem 37

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 8,092 \div 239 $$

4 step solution

Problem 38

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 5,794 \cdot 837 $$

4 step solution

Problem 38

(Section 4.5) Reduce $\frac{594}{5,148}$ to lowest terms.

3 step solution

Problem 38

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $2,688 \div 48$

4 step solution

Problem 39

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $6,311 \cdot 3,512$

5 step solution

Problem 39

(Section 4.7) $1 \frac{5}{9}$ of $2 \frac{4}{7}$ is what number?

3 step solution

Problem 39

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 72.14+21.08 $$

4 step solution

Problem 40

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $7,471 \cdot 5,782$

4 step solution

Problem 40

(Section 7.3) Solve the proportion: $\frac{7}{15}=\frac{x}{90}$.

4 step solution

Problem 40

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 43.016+47.58 $$

4 step solution

Problem 41

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 180 \div 12 $$

4 step solution

Problem 41

(Section 8.3) Use the clustering method to estimate the sum: $88+106+91+114$.

5 step solution

Problem 41

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 96.53-26.91 $$

4 step solution

Problem 42

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 309 \div 16 $$

5 step solution

Problem 42

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 115.0012-25.018 $$

4 step solution

Problem 43

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 286 \div 22 $$

3 step solution

Problem 43

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 206.19+142.38 $$

4 step solution

Problem 44

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 527 \div 17 $$

4 step solution

Problem 44

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. $$ 592.131+211.6 $$

5 step solution

Problem 45

Estimate each value using the method of rounding. After you have made an estimate, find the exact value. Compare the exact and estimated values. Results may vary. $$ 1,007 \div 19 $$

5 step solution

Problem 45

Estimate each calculation using the method of rounding. After you have made an estimate, find the exact value and compare this to the estimated result to see if your estimated value is reasonable. Results may vary. (32.12)(48.7)

4 step solution