Operações Com Números Decimais.
Desafio das 10 questões.
Questions and Answers
- 1.
Olá, Vamos Realizar um teste de Matemática. após você o terminar a ATIVIDADE deverá apresentar o caderno ao professoro Maurício , e ele vai VERIFICAR quantos Carimbos irá receber pela ATIVIDADE realizada. Vamos a ELA. Resolva Como abaixo Operações: I) 2 x 2,14 =
- A.
A) 327
- B.
B) 428
- C.
C) 3,27
- D.
D) 4,28
Correct Answer
D. D) 4,28Explanation
The correct answer is d) 4,28. This is the correct answer because when you multiply 2 by 2.14, you get 4.28.Rate this question:
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- 2.
II) 2,314 x 5
- A.
A) 11,570
- B.
B) 11570
- C.
C) 13,125
- D.
D) 6,125
Correct Answer
A. A) 11,570Explanation
To find the product of 2,314 and 5, we multiply the two numbers together. 2,314 multiplied by 5 equals 11,570. Therefore, the correct answer is a) 11,570.Rate this question:
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- 3.
III) de 2,4 x 1,4 =
- A.
A) 2,78
- B.
B) 4,78
- C.
C) 3,36
- D.
D) 378
Correct Answer
C. C) 3,36Explanation
The given expression is a multiplication problem. To solve it, we multiply 2.4 by 1.4. The product of 2.4 and 1.4 is 3.36. Therefore, the correct answer is c) 3.36.Rate this question:
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- 4.
IV) 2,17: 1,5 =
- A.
A) 1,3
- B.
B) 14
- C.
C) 1,4
- D.
D) 1,4466...
Correct Answer
D. D) 1,4466...Explanation
In the given question, the numbers 2 and 17 are divided by 1 and 5 respectively. When we divide 2 by 1, we get the result as 2. Similarly, when we divide 17 by 5, we get the result as 3.4. Hence, the correct answer is d) 1,4466...Rate this question:
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- 5.
V) 5,135 + 103,61 + 237,402 =
- A.
A) 12,345
- B.
B) 34,654
- C.
C) 346,147
- D.
D) 345,345
Correct Answer
C. C) 346,147 -
- 6.
V) 100 - 49,99 =
- A.
A) 50,01
- B.
B) 51
- C.
C) 51,99
- D.
D) 52
Correct Answer
A. A) 50,01Explanation
The given equation is subtracting 49.99 from 100. To find the answer, we subtract the decimal value from the whole number. Therefore, 100 - 49.99 equals 50.01.Rate this question:
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- 7.
IX) 1,2 : 0,6 =
- A.
A) 0,02
- B.
B) 200
- C.
C) 0,2
- D.
D) 2
Correct Answer
D. D) 2Explanation
The given equation is 1 divided by 2 equals 0 divided by 6. When dividing any number by zero, the result is undefined. Therefore, the equation is undefined and does not have a numerical value. Therefore, the correct answer is d) 2.Rate this question:
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- 8.
VIII) 2,16 - 1,855 =
- A.
A) 0,305
- B.
B) 305
- C.
C) 1,305
- D.
D) 2,305
Correct Answer
A. A) 0,305Explanation
The calculation 2,16 - 1,855 equals 0,305. This can be determined by subtracting the decimals separately, subtracting 1 from 2 (which equals 1), and subtracting 855 from 1600 (which equals 745). Combining these results gives a final answer of 0,305.Rate this question:
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- 9.
VII) 5,135 + 103,61 + 237,402 =
- A.
A) 12,345
- B.
B) 34,654
- C.
C) 346,147
- D.
D) 345,345
Correct Answer
C. C) 346,147Explanation
The correct answer is c) 346,147. The given problem involves adding three numbers together. When we add 5,135, 103,61, and 237,402, we get a sum of 346,147.Rate this question:
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- 10.
VI) 2,1+ 13,8 + 7 =
- A.
A) 45,136
- B.
B) 16,606
- C.
C) 15,24
- D.
D) 22,9
Correct Answer
D. D) 22,9Explanation
The given expression can be simplified by adding the numbers together. 2+13+7=22, and 1+8=9. Therefore, the simplified expression is 22,9.Rate this question:
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Mar 22, 2023Quiz Edited by
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Sep 23, 2014Quiz Created by
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