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Calcul mental - PowerPoint PPT Presentation

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.

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Calcul mental

Séquence 4.

Conversions d’unités; multiplication par 10

45,63 x 10 =

40,2 x 100 =

0,602 x 10 =

30 cm = m

28,2 dag = g

84,5 hL = dL

37,5 mg = dg

• Posez les stylos et retourner la feuille.

45,63 x 10 =

45,63 x 10 = 4 56,3

40,2 x 100 =

40,2 x 100 = 4 020

0,602 x 10 =

0,602 x 10 = 6,02

30 cm = m

30 cm = 0,30 m

28,2 dag = g

28,2 dag = 282 g

84,5 hL = dL

84,5 hL = 84 500 dL

37,5 mg = dg

37,5 mg = 0,375 dg