Real Numbers

Questão 1 de 10

1

1. What is 15 - - 8?

Selecione uma das seguintes:

7
-23
23
-7

Explicação

Questão 2 de 10

1

Traci says that 2 - 5 is the same as 2 + -5. Is her statement True or False?

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 3 de 10

1

In the expression \[x^2 -3y + 4\] the only coefficient is -3. True or False?

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 4 de 10

3

Drag the following terms to match them with their definition.

Arraste a resposta correta para cada ponto laranja.

rational

irrational

opposites

absolute value

Integers

additive inverses

whole numbers

Explicação

Questão 5 de 10

1

To simplify the expression 2y – 4x – x + 8, you should do which of the following?

Selecione uma das seguintes:

add 2y and -4x
add 2y , -4x, and 8
add 2y, -4x - x
add -4x and -x

Explicação

Questão 6 de 10

1

Bria had $120 in the bank. On Monday she deposited $25.00, and then withdrew $75 on Wednesday. Which equation represents the transaction and current balance in Bria’s account?

Selecione uma das seguintes:

120 + 25 – 75 = 70
120 – 25 + 75 = 170
-120 – 25 + 75 = -70
-120 + 25 -75 = -170

Explicação

Questão 7 de 10

1

Anthony says that | 4 + - 5| is the same as | 4| +|-5|. Given what you know about absolute value, determine which statement below is true.

Selecione uma das seguintes:

Anthony is correct and both values are 9.
Anthony is correct, and both values are 1.
Anthony is incorrect; the first value is 1, and the second value is 9.
Anthony is incorrect; the first value is 9 and the second value is 1.

Explicação

Questão 8 de 10

4

Preencha os espaços em branco para completar o texto.

State what type of number is given by placing an R for rational or an I for irrational on the blank next to each number.

a) - ⅔
b) π
c) √6
d) 5
e) 7.12112…
f) 4.777…
g) 9.549
h) √81

Explicação

Questão 9 de 10

2

Select all real-world scenarios below that could be a representation of the following equation
24 + -33 = -9

Selecione uma ou mais das seguintes:

Drew borrowed $33 from a friend, He later made $24 baby-sitting and paid it to his friend. Where does this leave Drew financially?
Chance withdrew $24 from his account, and then later deposited $33. What is the overall change in his account?
Cashmere was in a hot air balloon and descended 24 feet. She then ascended 33 feet. What is her overall change in elevation?
During the last two plays of a football game the Knights gained 24 yards, and then the center hiked the ball over the quarterback’s head, and they lost 33 yards. What is their overall change in yardage?

Explicação

Questão 10 de 10

1

Preencha os espaços em branco para completar o texto.

Write an addition problem for the scenario given below by filling in the blanks. Then give the solution.

On a cold winter day the temperature started out at -3° F. By 10:00 am the temperature decreased by 4°. What was the temperature at 10:00 am? (Be sure to enter the numbers in the order that they occur in the problem)
Equation: + = x
Solution:

	Criado por Marsha Booker aproximadamente 5 anos atrás

Assessing knowledge of Real Numbers and Computing with Real Numbers

Real Numbers

Real Numbers

Questão 1 de 10

1. What is 15 - - 8?

Selecione uma das seguintes:

Explicação

Questão 2 de 10

Traci says that 2 - 5 is the same as 2 + -5. Is her statement True or False?

Selecione uma das opções:

Explicação

Questão 3 de 10

In the expression \[x^2 -3y + 4\] the only coefficient is -3. True or False?

Selecione uma das opções:

Explicação

Questão 4 de 10

Drag the following terms to match them with their definition.

Arraste a resposta correta para cada ponto laranja.

Explicação

Questão 5 de 10

To simplify the expression 2y – 4x – x + 8, you should do which of the following?

Selecione uma das seguintes:

Explicação

Questão 6 de 10

Bria had $120 in the bank. On Monday she deposited $25.00, and then withdrew $75 on Wednesday. Which equation represents the transaction and current balance in Bria’s account?

Selecione uma das seguintes:

Explicação

Questão 7 de 10

Anthony says that | 4 + - 5| is the same as | 4| +|-5|. Given what you know about absolute value, determine which statement below is true.

Selecione uma das seguintes:

Explicação

Questão 8 de 10

Preencha os espaços em branco para completar o texto.

State what type of number is given by placing an R for rational or an I for irrational on the blank next to each number. a) - ⅔ b) π c) √6 d) 5 e) 7.12112… f) 4.777… g) 9.549 h) √81

Explicação

Questão 9 de 10

Select all real-world scenarios below that could be a representation of the following equation 24 + -33 = -9

Selecione uma ou mais das seguintes:

Explicação

Questão 10 de 10

Preencha os espaços em branco para completar o texto.

Explicação

State what type of number is given by placing an R for rational or an I for irrational on the blank next to each number.

a) - ⅔
b) π
c) √6
d) 5
e) 7.12112…
f) 4.777…
g) 9.549
h) √81

Select all real-world scenarios below that could be a representation of the following equation
24 + -33 = -9