More Lessons for SAT Math
Examples, solutions, videos, games, activities and worksheets to help SAT students review place values and digit problems.
Sum of Digits - Algebra Digit Word Problems
One difficult type of Algebra problem are word problems asking about the sum of digits in a two digit number.
Digit Word Problems
The units' digit of a two-digit counting number is 1 greater than twice the tens' digit. When the digits are reversed, the sum of the new number and the original number is 77. What was the original number?
Digit Word Problem in two variables
The word problem is translated into 2 algebraic equations and then the system is solved
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