유리수와 무리수 단원 종합

D.1Write rational or irrational.

1. 1
   $3.26$ 
2. 2
   $\pi$ 
3. 3
   $-\frac{7}{2}$ 
4. 4
   $\sqrt[3]{64}$ 

D.2List every set the number belongs to: natural, whole, integer, rational, irrational.

1. 5
   $\pi$
2. 6
   $-\frac{11}{5}$
3. 7
   $-27$
4. 8
   $9$

D.3Write each as a fraction or mixed number in simplest form.

1. 9
   $0.2\overline{5}=$ 
2. 10
   $0.1\overline{6}=$ 
3. 11
   $0.8\overline{3}=$ 
4. 12
   $0.9\overline{3}=$ 

D.4Write > or < in each circle.

1. 13
   $4.9$$\sqrt{23}$
2. 14
   $\sqrt{92}$$\frac{37}{4}$
3. 15
   $\frac{11}{2}$$\sqrt{34}$
4. 16
   $0.55$$0.\overline{5}$

D.5Write the numbers in the order shown.

1. 17
   Least to greatest: $8.86$; $9.\overline{90}$; $\sqrt{87}$; $8.51$
2. 18
   Least to greatest: $\sqrt{40}$; $5.95$; $5.\overline{81}$; $\sqrt{33}$
3. 19
   Greatest to least: $1.\overline{27}$; $\sqrt{5}$; $\frac{5}{4}$; $\sqrt{6}$
4. 20
   Greatest to least: $6.62$; $\sqrt{51}$; $\frac{57}{8}$; $7.\overline{6}$

D.1Rational or Irrational?

1. 1rational
2. 2irrational
3. 3rational
4. 4rational

D.2Classify Real Numbers

1. 5irrational
2. 6rational
3. 7integer, rational
4. 8natural, whole, integer, rational

D.3Repeating Decimals to Fractions

1. 9$\frac{23}{90}$
2. 10$\frac{1}{6}$
3. 11$\frac{5}{6}$
4. 12$\frac{14}{15}$

D.4Compare Real Numbers

1. 13>
2. 14>
3. 15<
4. 16<

D.5Order Real Numbers

1. 17$8.51$ < $8.86$ < $\sqrt{87}$ < $9.\overline{90}$
2. 18$\sqrt{33}$ < $5.\overline{81}$ < $5.95$ < $\sqrt{40}$
3. 19$\sqrt{6}$ > $\sqrt{5}$ > $1.\overline{27}$ > $\frac{5}{4}$
4. 20$7.\overline{6}$ > $\sqrt{51}$ > $\frac{57}{8}$ > $6.62$