Operações Com Números Decimais.

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) 327

b) 428

c) 3,27

d) 4,28

The correct answer is d) 4,28. This is the correct answer because when you multiply 2 by 2.14, you get 4.28.

Explanation

The correct answer is d) 4,28. This is the correct answer because when you multiply 2 by 2.14, you get 4.28.

2. II) 2,314 x 5

a) 11,570

b) 11570

c) 13,125

d) 6,125

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.

Explanation

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.

3. III) de 2,4 x 1,4 =

a) 2,78

b) 4,78

c) 3,36

d) 378

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.

Explanation

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.

4. VII) 5,135 + 103,61 + 237,402 =

a) 12,345

b) 34,654

c) 346,147

d) 345,345

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.

Explanation

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.

5. V) 5,135 + 103,61 + 237,402 =

a) 12,345

b) 34,654

c) 346,147

d) 345,345

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Explanation

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6. VI) 2,1+ 13,8 + 7 =

a) 45,136

b) 16,606

c) 15,24

d) 22,9

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.

Explanation

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.

7. IV) 2,17: 1,5 =

a) 1,3

b) 14

c) 1,4

d) 1,4466...

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...

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...

8. V) 100 - 49,99 =

a) 50,01

b) 51

c) 51,99

d) 52

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.

Explanation

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.

9. VIII) 2,16 - 1,855 =

a) 0,305

b) 305

c) 1,305

d) 2,305

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.

Explanation

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.

10. IX) 1,2 : 0,6 =

a) 0,02

b) 200

c) 0,2

d) 2

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.

Explanation

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.