Question

Efectuează: a) 49 x 5 +387 53 x 6 + 829 b) 66 x 6 + 48x7 58 x 9 + 31x9 c) 83 x 8 +52 5 17 x3 +29 x 8​

Answer 1

Răspuns:

a) 49×5+38753 × 6 + 829=

245 +38753 ×6 +829 =

245+232518+829=

232763+829 = 233592

b) 66 × 6 +48 ×758 × 9 + 31 ×9 =

396+ 36384 ×9 + 31 ×9=

396+327.456+279=328.131

mi lene sa fac si c