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Sagot :

ex11

a/60x3=180. 59,7×2,9=173,13

c/1x36=36. '0,48×36,2=17,376

b/123x4=492. 123,45×4,1=506,145

d/20x25=500. 19,7x25,4=500,38

ex12

0,45x3,8= 1,71

Sylvette doit ajouter 1,71 kg de sucre pour 3,8 kg abricots

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