Mentally Add/Subtract 10 or 100
Elementary School Math · Flashcards · Application
ELEMENTARY SCHOOL MATH · FLASHCARDS
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QUESTION
What is the result of subtracting
10
10
10
from
709
709
709
?
QUESTION
What is the result of subtracting
10
10
10
from
590
590
590
?
QUESTION
What is the result of subtracting
10
10
10
from
489
489
489
?
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ANSWER
479
479
479
. Subtracting
10
10
10
decreases the tens digit by
1
1
1
.
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