Question

Calculeaza in doua moduri:
5x(23+9);
26x(9-6);
(35+17)x8
(161-97)x4;
(5+5)x100

Answer 1

A)5x(23+9)=115+45=160 Sau =5x32=160 B)26x(9-6)=234-156=78 Sau =26x3=78 C)(35+17)x8=280+136=416 Sau =8x52=416 D)(161-97)x4=644-388=256 Sau =64x4=256 E)(5+5)x100=500+500=1000 Sau =10x100=1000

Answer 2

1)5x(23+9)
 a)5x32=160
 b)5x23+5x9=
   115+46=160
2)26x(9-6)
 a)26x3=78
 b)26x9-26x6
    234-156=78
3)(35+17)x8
 a)52x8=416
 b)35x8=
   280+136=416
4)(161-97)x4=
 a)64x4=256
 b)161x4-97x4=
   644-338=256
5)(5+5)x100
  a)10x100=1000
  b)5x100+5x100=
   500+500=1000