Chapter 8

For problems 1 - 16 , estimate each value. After you have made an estimate, find the exact value. Results may vary. (Section 8.2) \(3,716+6,789\)

For problems 1-70, 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. $$ 286+312 $$

Use the method of rounding fractions to estimate the result of each computation. Results may vary. $$ \frac{5}{8}+\frac{5}{12} $$

Use the distributive property to compute each value. $$6(8+4)$$

Use the clustering method to estimate each sum. $$ 28+51+31+47 $$

Estimate the sum: \(4,216+3,942\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. (Section 8.2) \(8,821+9,217\)

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. $$ 419+582 $$

Use the method of rounding fractions to estimate the result of each computation. Results may vary. $$\frac{7}{9}+\frac{3}{5}$$

Use the distributive property to compute each value. $$ 4(4+7) $$

Use the clustering method to estimate each sum. $$ 42+39+68+41 $$

Estimate the sum: \(812+514\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2\() 7,316-2,305\)

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. $$ 689+511 $$

Use the method of rounding fractions to estimate the result of each computation. Results may vary. $$ 8 \frac{4}{15}+3 \frac{7}{10} $$

Use the distributive property to compute each value. $$ 8(2+9) $$

Estimate the sum: \(43,892+92,106\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2\() 110,812-83,406\)

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. $$ 926+1,105 $$

Use the method of rounding fractions to estimate the result of each computation. Results may vary. $$ 16 \frac{1}{20}+4 \frac{7}{8} $$

Use the distributive property to compute each value. $$ 12(10+3) $$

Use the clustering method to estimate each sum. $$ 612+585+830+794 $$

Estimate the difference: \(628-413\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2\() 82 \cdot 38\)

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. \(1,927+3,017\)

Use the distributive property to compute each value. $$ 6(11-3) $$

Estimate the difference: \(7,842-5,209\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2 \() 51 \cdot 92\)

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. $$ 5,026+2,814 $$

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. $$ \frac{3}{8}+\frac{11}{12} $$

Use the distributive property to compute each value. $$ 8(9-7) $$

Estimate the difference: \(73,812-28,492\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2\() 48 \cdot 6,012\)

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. $$1,408+2,352$$

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. \(\frac{9}{10}+\frac{3}{5}\)

Use the distributive property to compute each value. $$ 15(30-8) $$

Use the clustering method to estimate each sum. Results may vary. $$ 88+62+59+90 $$

Estimate the product: \(31 \cdot 87\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2) \(238 \div 17\)

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. $$ 1,186+4,228 $$

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. $$ \frac{13}{15}+\frac{1}{20} $$

Use the distributive property to compute each value. \(25 \cdot 12\)

Use the clustering method to estimate each sum. Results may vary. $$ 76+29+33+82 $$

Estimate the product: \(18 \cdot 42\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2) \(2,660 \div 28\)

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. $$ 5,771+246 $$

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. $$ \frac{3}{20}+\frac{6}{25} $$

Use the distributive property to compute each value. $$ 35 \cdot 14 $$

Estimate the product: \(16 \cdot 94\).

Estimate each value. After you have made an estimate, find the exact value. Results may vary. \((\) Section 8.2\() 43.06+37.94\)