Cálculo Mental
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CALCULO MENTAL
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1 Cifra + 1 cifra = <10
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1 Cifra - 1 cifra = <10
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90-10
![Page 243: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/243.jpg)
90-20
![Page 244: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/244.jpg)
90-30
![Page 245: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/245.jpg)
90-40
![Page 246: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/246.jpg)
90-50
![Page 247: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/247.jpg)
90-60
![Page 248: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/248.jpg)
90-70
![Page 249: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/249.jpg)
90-80
![Page 250: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/250.jpg)
90-90
![Page 251: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/251.jpg)
1 Cifra + 1 cifra = 11-19
(aquí pueden usar los dedos)
EJEMPLO: 7 + 5. “Siete en la
cabeza y cinco en la mano”.
![Page 252: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/252.jpg)
2+9
![Page 253: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/253.jpg)
3+8
![Page 254: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/254.jpg)
3+9
![Page 255: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/255.jpg)
4+7
![Page 256: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/256.jpg)
4+8
![Page 257: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/257.jpg)
4+9
![Page 258: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/258.jpg)
5+6
![Page 259: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/259.jpg)
5+7
![Page 260: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/260.jpg)
5+8
![Page 261: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/261.jpg)
5+9
![Page 262: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/262.jpg)
6+5
![Page 263: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/263.jpg)
6+6
![Page 264: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/264.jpg)
6+7
![Page 265: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/265.jpg)
6+8
![Page 266: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/266.jpg)
6+9
![Page 267: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/267.jpg)
7+4
![Page 268: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/268.jpg)
7+5
![Page 269: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/269.jpg)
7+6
![Page 270: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/270.jpg)
7+7
![Page 271: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/271.jpg)
7+8
![Page 272: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/272.jpg)
7+9
![Page 273: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/273.jpg)
8+3
![Page 274: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/274.jpg)
8+4
![Page 275: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/275.jpg)
8+5
![Page 276: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/276.jpg)
8+6
![Page 277: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/277.jpg)
8+7
![Page 278: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/278.jpg)
8+8
![Page 279: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/279.jpg)
8+9
![Page 280: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/280.jpg)
9+2
![Page 281: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/281.jpg)
9+3
![Page 282: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/282.jpg)
9+4
![Page 283: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/283.jpg)
9+5
![Page 284: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/284.jpg)
9+6
![Page 285: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/285.jpg)
9+7
![Page 286: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/286.jpg)
9+8
![Page 287: Cálculo Mental](https://reader036.fdocuments.ec/reader036/viewer/2022062315/5695d4c51a28ab9b02a2b1aa/html5/thumbnails/287.jpg)
9+9