Quiz about Adding and Subtracting Rational Numbers

Question 1

-2.61 + (-6.88)

Accepted Answer

-9.49

Answer

9.49

Answer

4.27

Answer

-4.27

Question 2

9 + -6.73

Accepted Answer

2.27

Answer

-2.27

Answer

15.73

Answer

-15.73

Question 3

2/4 + -5/4

Accepted Answer

-3/4

Answer

-7/4

Answer

3/4

Answer

-7/8

Question 4

Add: -3.6 + 7.5

Accepted Answer

3.9

Answer

-11.1

Answer

11.1

Answer

-4.9

Question 5

When adding rational numbers with the same sign, you must:

Accepted Answer

Add together and keep the sign

Answer

Subtract and keep the sign of the biggest number

Answer

Keep, change, flip

Answer

Add the opposite

Question 6

When adding rational numbers with different signs, you must:

Accepted Answer

Subtract and keep the sign of the biggest number

Answer

Add together and keep the sign

Answer

Keep, change, flip

Answer

Add the opposite

Question 7

Question 7.

Accepted Answer

-1/8

Answer

-1/16

Answer

-3/4

Answer

3/4

Question 8

When you add opposites, what do you get?

Accepted Answer

0

Answer

A negative number

Answer

Attraction

Answer

You cannot add opposites

Question 9

-2 + 4

Accepted Answer

2

Answer

-2

Answer

0

Answer

-4

Question 10

3 + -7

Accepted Answer

-4

Answer

10

Answer

4

Answer

-10

Question 11

-9 + (-5)

Accepted Answer

-14

Answer

14

Answer

-4

Question 12

10 + (-4) = ?

Accepted Answer

6

Answer

-6

Answer

14

Answer

-14

Question 13

Is this a correct answer?

Accepted Answer

No, you cannot add unlike denominators

Answer

Yes, the student correctly added.

Answer

No, 5 + 7 is not 12

Answer

No, 2 + 3 is not 5

Question 14

What is the least common denominator you could use to subtract 1/3 and 1/4?

Accepted Answer

12

Answer

3

Answer

4

Answer

24

Question 15

What is the the next step to finding this answer?

Accepted Answer

Multiply to find each new numerator by the multiple used to get 12. (3 X1) (4 X 1)

Answer

Add the numerators (1+1=2)

Answer

Multiply 12 X 1 for both fractions to find a new numerator

Answer

This is a mistake, you don't need to convert to twelfths

Question 16

Yao drank ¹¹/₄bottles of water during a soccer game. What is the number expressed as a mixed number?

Accepted Answer

2 3/4

Answer

3 1/4

Answer

2 1/2

Answer

2 1/4

Question 17

What is the least common denominator of 1/2 and 3/7?

Accepted Answer

14

Answer

2

Answer

7

Answer

28

Question 18

Convert this improper fraction to a mixed number: 12/6

Accepted Answer

2

Answer

1 6/6

Answer

1 2/6

Answer

1 1/3

Question 19

4   1/3   + 2  1/3

Accepted Answer

6  2/3

Answer

6  1/3

Answer

6  2/6

Answer

7  2/3

Question 20

5   4/8 +  4  3/8

Accepted Answer

9  7/8

Answer

9  7/15

Answer

8  7/16

Answer

10  7/8

Question 21

7  3/2 + 1  1/2

Accepted Answer

10

Answer

10  1/2

Answer

11

Answer

11  1/2

Question 22

12 8/9 + 3 4/9=
(SIMPLEST FORM)

Accepted Answer

16 1/3

Answer

15 3/9

Answer

17 3/9

Answer

16  3/7

Question 23

7  3/5  + 5  3/5

Accepted Answer

13  1/5

Answer

12  5/5

Answer

12  1/5

Answer

13  2/5

Question 24

5 5/6 + 1 4/6
SIMPLEST FORM

Accepted Answer

7   1/2

Answer

7   3/6

Answer

6    3/6

Answer

7    4/6

Question 25

What is 2 1/2 + 5 2/4= ?

Accepted Answer

8 or 7 4/4

Answer

7 2/6

Answer

8 1/4

Answer

33/4

Question 26

1 1/6 + 4 1/2= ?

Accepted Answer

5 4/6

Answer

6

Answer

5 5/6

Question 27

1/2 + 1/3 =

Accepted Answer

5/6

Answer

2/5

Answer

3/4

Answer

4/6

Question 28

1/3 + 1/4 =

Accepted Answer

7/12

Answer

2/7

Answer

4/5

Answer

5/12

Question 29

1/5 + 1/10 =

Accepted Answer

3/10

Answer

3/5

Answer

2/5

Answer

2/15

Question 30

2/5 + 1/3 =

Accepted Answer

11/15

Answer

1/15

Answer

3/8

Answer

7/15

Question 31

1/8 + 1/4 =

Accepted Answer

3/8

Answer

2/12

Answer

1/6

Answer

5/32

Question 32

3/5 + 1/10 =

Accepted Answer

7/10

Answer

4/15

Answer

4/50

Answer

35/40

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