Bonsoir
A = 25 + 47 + 18 + 63 + 52 + 19 + 35
25 +5 +30+47+3 +60 + 52+8 + 10+ 10 +9 =
30+30+50 +60 +60 +10 +10+9= 259
B = 48 + 56 - 27 + 14 - 28 – 16 + 47
48+56 +14 +47 -(27+28 +16)
40+50 +10+4 +40 +7 -(20+20+10 + 7+8+6)
140 +11 - (60+21)
151 - 81 = 70
C = 4 x 2 x 8 x 6 x 5 x 25=48 000
4*25 = 100
100*2 = 200
20* 8 = 1 600
1 600*10 *3 = 16 000 *3 = 48 000
D = 5 X 3 X 8 X 3 X 125 x 2 =90 000
5*3*8 = 120
120*3 = 360
360*2 =720
720*125
720*100* + 720*20 +720*5 = 72000 + 14400 +3600 =90 000
