Lesson 5: Repetitive Subtraction and Addition
TRANSPARENCY
Repetitive Subtraction and
Addition
15 - 3 - 3 - 3 = ?
6 + 2 + 2 + 2 = ?
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| 0. | |
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| 15. | |
15 |
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3 |
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| 12. | ||
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| 9. | |||
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| 6. | |||
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6 |
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2 |
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| 8. | ||
= |
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| 10. | |||
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| 12. |
Victor 900 Calculator Teacher’s Guide | 18 |