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Adição e subtração de números racionais

Authored by Maria Moreira

Mathematics

7th Grade

Used 89+ times

Adição e subtração de números racionais
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40 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

O valor da expressão numérica  13+13\frac{1}{3}+\frac{1}{3}  é:

 26\frac{2}{6}  

 23\frac{2}{3}  

 16\frac{1}{6}  

 11  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

O valor numérico da expressão  5626\frac{5}{6}-\frac{2}{6}  é:

 30\frac{3}{0}  

 76\frac{7}{6}  

 312\frac{3}{12}  

 12\frac{1}{2}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 3765-\frac{3}{7}-\frac{6}{5} 

 -  5725\frac{57}{25}  

 -  \frac{57}{35}  

 -  5632\frac{56}{32}  

 -  3427\frac{34}{27}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt


 1725-\frac{1}{7}-\frac{2}{5}   

 1935-\frac{19}{35}  

 935\frac{9}{35}  

 935-\frac{9}{35}  

 1935\frac{19}{35}   

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 262314\frac{2}{6}-\frac{2}{3}-\frac{1}{4}  

 712-\frac{7}{12}  

 912-\frac{9}{12}  

 613-\frac{6}{13}  

 720-\frac{7}{20}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 5+(8)-5+\left(-8\right)  


 13-13  

 1313  

 3-3  

 +3+3  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 12+(8)5-12+\left(-8\right)-5  


 2525  

 25-25  

 99  

 9-9  

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