Prix ​​de vente

Module 1

Question 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

=48-12

=36

Question 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) 1 - 3 1-( 3 = 3  4 = 0,75 ) = 150 000 = 150 000  0,25 | 600 000

=440,25

d) 80000(2-1.60) = 80000 × 0.480000(2-1.60)-12000 80000 × 0.4 -12000

= 32000

32000 – 12000

= 20 000

e) [(20000 ×0.50) + (10000 × 0.50)] × 6.145- [(70000×0.70) + (80000 ×0.70)]

= (10000+5000) ×6.145- (49000+56000)

=15000×6.145-105000

=92175 – 105000

= -12825

Question 3:

a) (-5)2 = 25

b) (52)3 = 56 = 15625

c) 53 ×5-2 =51 =5

d) 63 = 6×6×6 = 216 = 27

24 2x2x2x2 16 2

e) 9-3 = 1 = 1 = 1 = 1

9 2 92 x

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