mqt 1001 tn1

422 mots 2 pages
Réponse 1 :
a) 5+10-3×2÷6= 5+10-(3×2) ÷6 =15-(6÷6) =15-1 =14

b) -25-5×3+8÷2=-25-(5×3) + (8÷2) =-25-15+4 =-40+4 =-36
c) (3+7)×2+ (15+3) ×4= (10×2) + (18×4) = 20+ 72 = 92
d) 68+32÷ (-8) = 68-4 =64

e) 48+ [(-11+3) ×2 + (4+24) ÷7] = 48+[(-8×2)+(28÷7)] = 48+ (-16+4) =48-12 =36
Réponse 2 :
a) 114000+26000 = 140000 = 140000
26000+ 40000 26000+ 40000 26000+40000×100 1-48% 0.52 52 = 140000 = 140000 26000+4000000 1352000+4000000 52 52 = 140000 =140000×52 5352000 5352000 52 =7280000 = 7280 5352000 5352 =910 = 1.36 669
b) -45-(-5) +5×21 = -45+5+5×21
-6+49÷(-7) -6-7 = -40+105 -13 = -65 13 = -5
c) 150000 = 150000
1- 3 4-3
4 4 = 150000 1 4 =

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