Calcul mental multiplications et divisions par 10 100 1 000... multiplications par 0,1 0,01 0,001...
Calcul mental
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Calcul mental Séquence 4. Conversions d’unités; multiplication par 10
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Calcul mental. Séquence 4. Conversions d’unités; multiplication par 1 0. Question 1. 45,63 x 10 =. Question 2. 40,2 x 100 =. Question 3. 0,602 x 10 =. Question 4. 30 cm = m. Question 5. 28,2 dag = g. Question 6. 84,5 hL = dL. Question 7. 37,5 mg = dg. - PowerPoint PPT Presentation
Transcript of Calcul mental
![Page 1: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/1.jpg)
Calcul mental
Séquence 4.
Conversions d’unités; multiplication par 10
![Page 2: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/2.jpg)
Question 1
45,63 x 10 =
![Page 3: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/3.jpg)
![Page 4: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/4.jpg)
Question 2
40,2 x 100 =
![Page 5: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/5.jpg)
![Page 6: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/6.jpg)
Question 3
0,602 x 10 =
![Page 7: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/7.jpg)
![Page 8: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/8.jpg)
Question 4
30 cm = m
![Page 9: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/9.jpg)
![Page 10: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/10.jpg)
Question 5
28,2 dag = g
![Page 11: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/11.jpg)
![Page 12: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/12.jpg)
Question 6
84,5 hL = dL
![Page 13: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/13.jpg)
![Page 14: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/14.jpg)
Question 7
37,5 mg = dg
![Page 15: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/15.jpg)
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Fin• Posez les stylos et retourner la feuille.
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Correction
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Question 1
45,63 x 10 =
![Page 19: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/19.jpg)
Question 1
45,63 x 10 = 4 56,3
![Page 20: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/20.jpg)
Question 2
40,2 x 100 =
![Page 21: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/21.jpg)
Question 2
40,2 x 100 = 4 020
![Page 22: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/22.jpg)
Question 3
0,602 x 10 =
![Page 23: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/23.jpg)
Question 3
0,602 x 10 = 6,02
![Page 24: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/24.jpg)
Question 4
30 cm = m
![Page 25: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/25.jpg)
Question 4
30 cm = 0,30 m
![Page 26: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/26.jpg)
Question 5
28,2 dag = g
![Page 27: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/27.jpg)
Question 5
28,2 dag = 282 g
![Page 28: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/28.jpg)
Question 6
84,5 hL = dL
![Page 29: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/29.jpg)
Question 6
84,5 hL = 84 500 dL
![Page 30: Calcul mental](https://reader036.fdocuments.us/reader036/viewer/2022062408/56813ebf550346895da92b0c/html5/thumbnails/30.jpg)
Question 7
37,5 mg = dg
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Question 7
37,5 mg = 0,375 dg
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Fin