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Sagot :

Réponse :

bonjour

Explications étape par étape :

11x(7+6)

= 11x 13 = 143

11x7 +11x6= 77 + 66 = 143

13x(100-2)

=13x98 = 1274

13x100 -13x2

=1300-26

=1274

40x(40+3)

40 x 43

= 1720

40x40 + 40x3

=1600+120

=1720

(20-3)x15

=17x15 = 255

20x15 -3x15

=300 - 45

=255

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