Adding and subtracting decimals
Line up the points; regroup as with whole numbers.
Watch out: never subtract the smaller digit from the larger by habit.
Revision sheet
All the summary cards of the chapter on one page. Print it, or save it as a PDF from the print window.
Multiplying decimals
Multiply, then count the decimal places.
Watch out: estimate to place the point.
Dividing decimals
Scale both numbers to make the divisor whole.
Watch out: dividing by 0.something makes it bigger.
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