Simple Addition Problems
The simplest of word or story problems involves addition of two (or more integers). We may or may not introduce a symbol for the unknown sum - it all depends on the adopted style of problem solving. Below, this tutorial presents two a little different approaches. As in other word problems, it is important to separate the essential information from the specific clothing of a particular problem.
(Note: In the applet below, all underlied words and numbers can be clicked on. Please feel free to do just that.)
Let's see how the same solution can be worded with an introduction of a variable to denote an unknown sum. As always, the selection of a name for the unknown is inconsequential.
(There are many more word problems discussed and solved at this site. The math tutorial continues with a similar approach over several additional examples.)
- Problems of class a + x = b
- Problems of class a · x = b
- From Word Problem to Equation
- Problems of class x / a = b / c
- Problems of class x = a + b
- Problems of class x = a + b (II)
- Problems of class x = a × b
- Solving Two Simultaneous Linear Equations
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