Answered

35 Calcule astucieusement.
a. 57 x 99 + 57 x 1
b. 212 x 1003 - 212 x 3
c. 177 x 5 + 177 x 2 + 177 x 3

Sagot :

ENZO8176
1)57x99 + 57x1
57 x (99+1)
57 x 100
5700

2) 212x1003 - 212x3
212x (1003-3)
212 x 1000
212 000

3) 177x5 + 177x2 + 177x3
177 x (5+2+3)
177 x 10
1770