sums of three addends
1ª Edition
Copyright notice: By Luis Galindo Martín. All rights reserved.
The above information forms this copyright notice: © 2023 by Luis Galindo Martín. All rights reserved.
Content 1.
.........................................................................................................................................................................................................................................8
2.
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3.
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4.
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5.
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6.
...................................................................................................................................................................................................................................... 28
7.
...................................................................................................................................................................................................................................... 32
8.
...................................................................................................................................................................................................................................... 36
9.
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10.
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11.
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12.
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26.
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27.
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28.
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29.
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30.
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31.
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32.
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33.
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34.
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35.
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36.
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36 + 36 sums of three addends
To learn by doing
Exercises with marking of the units we take with us facilitate the student to carry out and to the teacher the correction.