Lesson 3 - Solve for One Unknown

Gap-fill exercise

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Fill in all the gaps, by selecting the Pull Down Box Arrow next to each gap. Select the correct answer.

Work al problems by hand, then practice drill with your CASIO fx-260 calculator.
Solve

1. x + 13 = 21 x =

2. y - 23 = 7 y =

3. p + 9 = 3 p =

4. v - 8 = -6 v =

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