Operații cu numere raționale – [2]

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English

Partea a doua a exercițiilor ce necesită operații în mulțimea numerelor raționale și mai ales a celor negative.

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Question 1 of 10

1. Question
1 points
${(\frac{1}{2})}^{0} + {(\frac{1}{2})}^{1} + {(\frac{1}{2})}^{2} + {(\frac{1}{2})}^{3} + {(\frac{1}{2})}^{4} + {(\frac{1}{2})}^{5} =$
- $\frac{63}{16}$
- 1
- ${(\frac{1}{2})}^{15}$
- $\frac{63}{32}$
Correct

Incorrect
Question 2 of 10

2. Question
1 points
$3 - 1 \frac{1}{3} : \frac{1}{3} - (- \frac{1}{3} - \frac{2}{3}) =$
- $0$
- $\frac{4}{3}$
- $3$
- $\frac{1}{3}$
Correct

Incorrect
Question 3 of 10

3. Question
1 points
${(- \frac{1}{2})}^{5} =$
- $- \frac{5}{32}$
- -1
- $- \frac{1}{32}$
- $+ \frac{1}{16}$
Correct

Incorrect
Question 4 of 10

4. Question
1 points
${(- \frac{2}{3})}^{4} \cdot {(- \frac{2}{3})}^{16} \cdot {(\frac{2}{3})}^{7} =$
- ${(- \frac{2}{3})}^{21}$
- $\frac{2}{3}$
- ${(\frac{2}{3})}^{27}$
- ${(- \frac{2}{3})}^{27}$
Correct

Incorrect
Question 5 of 10

5. Question
1 points
$1 - \frac{1}{2} \cdot \frac{1}{3} =$
- $\frac{1}{2}$
- $\frac{6}{5}$
- $- \frac{5}{6}$
- $\frac{5}{6}$
Correct

Incorrect
Question 6 of 10

6. Question
1 points
${(- 13 + 1234 - 76^{8} + 12^{234})}^{0} =$
- 1
- -13
- 1234
- 0
Correct

Incorrect
Question 7 of 10

7. Question
1 points
$- \frac{1}{4} \cdot \frac{12}{13} =$
- -1
- $- \frac{3}{13}$
- $\frac{3}{13}$
- -3
Correct

Incorrect
Question 8 of 10

8. Question
1 points
$\frac{3}{4} : (- \frac{9}{16}) + (- \frac{1}{5}) : (+ \frac{11}{15}) =$
- $- \frac{52}{33}$
- $- \frac{54}{33}$
- $- \frac{53}{33}$
- $\frac{11}{33}$
Correct

Incorrect
Question 9 of 10

9. Question
1 points
$1 \frac{2}{3} : (- \frac{5}{6}) =$
- $- \frac{2}{13}$
- $- \frac{1}{2}$
- + 2
- - 2
Correct

Incorrect
Question 10 of 10

10. Question
1 points
${[{(- \frac{2}{5})}^{6}]}^{13} =$
- ${(- \frac{2}{5})}^{87}$
- ${(- \frac{3}{5})}^{68}$
- $- \frac{2}{78}$
- ${(- \frac{2}{5})}^{78}$
Correct

Incorrect

Examples of questions from "Operații cu numere raționale – [2]"

$- \frac{1}{4} \cdot \frac{12}{13} =$
$1 \frac{2}{3} : (- \frac{5}{6}) =$
${(- 13 + 1234 - 76^{8} + 12^{234})}^{0} =$

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Operații cu numere raționale – [2]

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Operații cu numere raționale – [2]

Quiz-summary

Information

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

Examples of questions from "Operații cu numere raționale – [2]"

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