Quiz about Adding and Subtracting Rational Decimals

Question 1

When adding decimals with the same sign you.....

Accepted Answer

add and keep the sign

Answer

subtract and take the sign of the larger number

Answer

add the opposite

Answer

subtract and keep the sign

Question 2

When adding decimals with different signs you....

Accepted Answer

subtract and take the sign of the larger number

Answer

add the opposite

Answer

add and keep the sign

Answer

subtract and keep the sign

Question 3

-23.4 - 3.4=

Accepted Answer

-26.8

Answer

-20

Answer

26.8

Answer

20

Question 4

-6.5 + (-0.5)

Accepted Answer

-7

Answer

7

Answer

6

Answer

-6

Question 5

34.5 + (-7)

Accepted Answer

27.5

Answer

-41.5

Answer

41.5

Answer

-27.5

Question 6

-7.8 + (-0.8)

Accepted Answer

-8.6

Answer

8.6

Answer

7

Answer

-7

Question 7

-40 + 15.05=

Accepted Answer

-24.95

Answer

55.05

Answer

24.95

Answer

14.65

Question 8

-6.25 + 7

Accepted Answer

0.75

Answer

-0.75

Answer

13.25

Answer

-13.25

Question 9

-3.133 + -0.24

Accepted Answer

-3.373

Answer

3.373

Answer

2.893

Answer

-2.893

Question 10

-3.133 + -0.24

Accepted Answer

-3.373

Answer

3.373

Answer

2.893

Answer

-2.893

Question 11

A rock climber that is 0.74 miles above sea level ascends 0.18 miles and then descends 0.8 miles.  Which represents the location of the rock climber compared to sea level?

Accepted Answer

.12

Answer

1.72

Answer

1.36

Answer

-.24

Question 12

What is the value of -4.5 - 6 ?

Accepted Answer

-10.5

Answer

10.5

Answer

-3.9

Answer

3.9

Question 13

What is the value of 18 - 23.2 ?

Accepted Answer

-5.2

Answer

-5.8

Answer

5.2

Answer

5.8

Question 14

What is the value of the expression
-7 + 3.43 - 8.2 ?

Accepted Answer

-11.77

Answer

-4.7

Answer

11.77

Answer

4.7

Question 15

Beth worked 33.25 hours last week and 23.75 this week. How many total hours did she work?

Accepted Answer

57 hrs

Answer

40 hrs

Answer

52 hrs

Answer

50 hrs

Question 16

-51 + 81.623

Accepted Answer

30.623

Answer

-30.623

Answer

132.623

Answer

-132.623

Question 17

What is the value of the expression -3.2 + 5 - 8?

Accepted Answer

-6.2

Answer

6.2

Answer

1

Answer

-1

Question 18

Nash earns $12 per week, after 3 weeks he spends $12.48. How much does Nash have left?

Accepted Answer

$23.52

Answer

$35.00

Answer

$28.33

Answer

$24.52

Adding and Subtracting Rational Decimals

20 questions

When adding decimals with the same sign you.....

When adding decimals with different signs you....

-23.4 - 3.4=

-6.5 + (-0.5)

34.5 + (-7)

-7.8 + (-0.8)

-40 + 15.05=

-6.25 + 7

-3.133 + -0.24

-3.133 + -0.24

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