Question

What is 12 8/15 − 7 + 7/15 + 15
? Simplify your answer.(1 point)
Responses

20 15/15
20 Start Fraction 15 over 15 End Fraction

41 15/15
41 Start Fraction 15 over 15 End Fraction

35
35

21

Answer 1

How should you group the following expression to make it easiest to add? 18 − 949 + 79 − 8
(1 point)
Responses

(18 − 8 − 9)
Left Parenthesis 18 minus 8 minus 9 Right Parenthesis

(18 − 9 − 8) + (−49 + 79)
Left Parenthesis 18 minus 9 minus 8 Right Parenthesis plus Left Parenthesis negative Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 Right Parenthesis

(18 − 8) + (−949 + 79)
Left Parenthesis 18 minus 8 Right Parenthesis plus Left Parenthesis negative 9 Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 End Fraction Right Parenthesis

(8 − 18) + (49 + 79)

Answer 2

What should you do if a place value is missing a number?(1 point)
Responses

Remove the last digit(s) in the number that has the additional place values.
Remove the last digit(s) in the number that has the additional place values.

Subtract without it.
Subtract without it.

Add a zero.
Add a zero.

Nothing.

Answer 3

What is −18.1−5
?(1 point)
Responses

13.1
13.1

23.1
23.1

−13.1
negative 13.1

−23.1

Answer 4

What is −189.987−30.87
?(1 point)
Responses

−159.117
negative 159.117

159.117
159.117

220.857
220.857

−220.857

Answer 5

thank you

Answer 6

21

Answer 7

(18 − 8) + (−949 + 79)

Answer 8

Add a zero.

Answer 9

-23.1

Answer 10

-220.857

Answer 11

You're welcome! If you have any more questions, feel free to ask.