Sagot :
Bonsoir,
a. Comparer 52 - 22 et (5+2) x (5-2).
30 et 21
52 - 22 > (5+2) x (5-2).
c. Comparer 92 – 82 et (9 + 8) x (9 - 8).
10 et 17
92 – 82 < (9 + 8) x (9 - 8).
b. Comparer 92 – 82 et (9 + 8) x (9 - 8).
40 et 40
92 – 82 = (9 + 8) x (9 - 8).
d. Comparer 272 - 102 et (27 + 10) x (27 - 10).
170 et 629
272 - 102 < (27 + 10) x (27 - 10).
a. 52-22=30
(5+2) x (5-2)=21
30>21
52 - 22>(5+2) x (5-2)
b. 92-82=10
(9 + 8) x (9 - 8)=17
10<17
92-82<(9 + 8) x (9 - 8)
c. 72-32=40
(7 + 3) x (7 - 3)=40
40=40
72-32=(7 + 3) x (7 - 3)
d. 272-102=170
(27 + 10) x (27 - 10)=629
620>170
272-102>(27 + 10) x (27 - 10).