Try Again
Review Lesson
Math6.org
Mental Math Page
Compensation (Double Points)
Type or select your answer, then press "Check".
After a correct answer, click the => to advance to the next question.
Show all questions
<=
=>
Compensation works because you keep the expression ________.
?
Balanced
?
In your head.
?
Study
Which of the following is a correct compensation for 43 + 27 =
?
40 + 30 =
?
46 + 30 =
?
Study
Which of the following is a correct compensation for 28 + 19 =
?
27 + 20
?
29 + 20 =
?
Study
Which of the following is a correct compensation for 141 + 38 =
?
139 + 40
?
143 + 40
?
Study
Which of the following is a correct compensation for 71 - 16 =
?
67 - 20
?
75 - 20
?
Study
Which of the following is a correct compensation for 32 - 18 =
?
34 - 20
?
30 - 20
?
Study
Which of the following is a correct compensation for 26 - 15 =
?
31 - 20
?
21 - 21
?
Study
Which do you think is easier?
?
Compensation with Addition
?
Compensation with Subtraction
?
Study
OK
Top
© 2010 Norm Mitchell. All Rights Reserved |
Legal
|
Privacy
|
COPPA
|
Site Map
|
Search
|
Contact
|
Help