Rounding Off (Grade 10 NSC Matric Mathematics): Flashcards
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Practise the cards
10 cards from this deck
Definition of rounding off
Definition of rounding off
Approximating decimal to specific number of decimal places
When to round up
When to round up
When deciding digit is 5 or greater
When to round down
When to round down
When deciding digit is less than 5
Deciding digit location
Deciding digit location
Immediately after target decimal place
Special rule for rounding up 9
Special rule for rounding up 9
9 becomes 0, carry 1 to next left digit
First step in rounding process
First step in rounding process
Identify target decimal place
Which digits round up
Which digits round up
5, 6, 7, 8, 9
Which digits round down
Which digits round down
0, 1, 2, 3, 4
Fractions before rounding
Fractions before rounding
Convert to decimals first
Purpose of rounding off
Purpose of rounding off
Quickest, most practical way to work with long decimals