Sunday, November 14, 2010
Mental Subtraction Worksheets
Mentally Subtracting Two-Digit NumbersHow to mentally subtract two two-digit numbers. Subtract 35 from 84.First subtract the two tens' place digits (8 - 3 = 5)Notice that the bottom ones' digit is larger than the top ones' digit. Decrease the answer for the tens' place by one (5 - 1 = 4) and increase the top ones' place value by 10 (4 + 10 = 14). Next subtract the two ones' place values (14 -
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