Chapter 8
Fundamentals of Mathematics · 299 exercises
Problem 19
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. $$ 921+796 $$
4 step solution
Problem 20
Use the distributive property to obtain the exact result. \((\) Section 8.4\() 80 \cdot 107\)
5 step solution
Problem 20
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. $$3,704+4,704$$
5 step solution
Problem 20
Estimate each sum or difference using the method of rounding. After you have made an estimate, find the exact value of the sum or difference and compare this result to the estimated value. Result may vary. $$ 7 \frac{5}{12}+10 \frac{1}{16} $$
6 step solution
Problem 20
Use the distributive property to compute each product. $$ 25 \cdot 38 $$
4 step solution
Problem 20
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. $$ 611+806 $$
4 step solution
Problem 21
Use the distributive property to obtain the exact result. \((\) Section 8.4\() 400 \cdot 215\)
7 step solution
Problem 21
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. $$41 \cdot 63$$
4 step solution
Problem 21
Estimate each sum or difference using the method of rounding. After you have made an estimate, find the exact value of the sum or difference and compare this result to the estimated value. Result may vary. $$ 3 \frac{11}{20}+2 \frac{13}{25}+1 \frac{7}{8} $$
6 step solution
Problem 21
Use the distributive property to compute each product. \(25 \cdot 96\)
4 step solution
Problem 21
Use the clustering method to estimate each sum. Results may vary. $$ 518+721+493+689 $$
3 step solution
Problem 21
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. $$ 4,681+9,325 $$
4 step solution
Problem 22
For problems 22-25, estimate each value. After you have made an estimate, find the exact value. Results may vary. (Section 8.5) \(\frac{15}{16}+\frac{5}{8}\)
4 step solution
Problem 22
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. $$38 \cdot 81$$
4 step solution
Problem 22
Estimate each sum or difference using the method of rounding. After you have made an estimate, find the exact value of the sum or difference and compare this result to the estimated value. Result may vary. $$ 6 \frac{1}{12}+1 \frac{1}{10}+5 \frac{5}{6} $$
4 step solution
Problem 22
Use the distributive property to compute each product. \(75 \cdot 14\)
5 step solution
Problem 22
Use the clustering method to estimate each sum. Results may vary. $$ 981+1208+1214+1006 $$
4 step solution
Problem 22
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. $$ 6,476+7,814 $$
4 step solution
Problem 23
Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.5\() \frac{1}{25}+\frac{11}{20}+\frac{17}{30}\)
5 step solution
Problem 23
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. $$ 18 \cdot 28 $$
5 step solution
Problem 23
Estimate each sum or difference using the method of rounding. After you have made an estimate, find the exact value of the sum or difference and compare this result to the estimated value. Result may vary. \(\frac{15}{16}-\frac{7}{8}\)
4 step solution
Problem 23
Use the distributive property to compute each product. \(85 \cdot 34\)
5 step solution
Problem 23
Use the clustering method to estimate each sum. Results may vary. $$ 23+81+77+79+19+81 $$
5 step solution
Problem 23
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. $$ 7,805-4,266 $$
4 step solution
Problem 24
Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.5\() 8 \frac{9}{16}+14 \frac{1}{12}\)
6 step solution
Problem 24
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. $$52 \cdot 21$$
5 step solution
Problem 24
Estimate each sum or difference using the method of rounding. After you have made an estimate, find the exact value of the sum or difference and compare this result to the estimated value. Result may vary. $$ \frac{12}{25}-\frac{9}{20} $$
5 step solution
Problem 24
Use the distributive property to compute each product. \(65 \cdot 26\)
5 step solution
Problem 24
Use the clustering method to estimate each sum. Results may vary. $$ 94+68+66+101+106+71+110 $$
3 step solution
Problem 24
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. $$ 8,427-5,342 $$
4 step solution
Problem 25
Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.5\() 5 \frac{4}{9}+1 \frac{17}{36}+6 \frac{5}{12}\)
7 step solution
Problem 25
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. $$307 \cdot 489$$
4 step solution
Problem 25
(Section 2.6\()\) The fact that (a first number - a second number) \(\quad\). a third number \(=\) a first number (a second number - a third number) is an example of which property of multiplication?
4 step solution
Problem 25
Use the distributive property to compute each product. \(55 \cdot 51\)
5 step solution
Problem 25
(Section 1.2) Specify all the digits greater than 6 .
2 step solution
Problem 25
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. $$ 14,106-8,412 $$
4 step solution
Problem 26
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. $$ 412 \cdot 807 $$
4 step solution
Problem 26
(Section 4.6) Find the quotient: \(\frac{14}{15} \div \frac{4}{45}\).
4 step solution
Problem 26
Use the distributive property to compute each product. \(15 \cdot 107\)
6 step solution
Problem 26
(Section 4.5) Find the product: \(\frac{2}{3} \cdot \frac{9}{14} \cdot \frac{7}{12}\).
5 step solution
Problem 26
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. $$ 26,486-18,931 $$
4 step solution
Problem 27
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. \(77 \cdot 614\)
4 step solution
Problem 27
(Section 5.4) Find the difference: \(3 \frac{5}{9}-2 \frac{2}{3}\).
5 step solution
Problem 27
Use the distributive property to compute each product. \(25 \cdot 208\)
5 step solution
Problem 27
(Section 6.3) Convert 0.06 to a fraction.
5 step solution
Problem 27
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. \(32 \cdot 53\)
5 step solution
Problem 28
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. $$ 62 \cdot 596 $$
4 step solution
Problem 28
(Section 6.8\()\) Find the quotient: \(4.6 \div 0.11\).
6 step solution
Problem 28
Use the distributive property to compute each product. \(35 \cdot 402\)
5 step solution
Problem 28
(Section 7.3) Write the proportion in fractional form: "5 is to 8 as 25 is to \(40 .\) "
3 step solution