Question

Efectuează:
a) 2345 +6187 - 3804
9005 - 3470 + 876 =
7254 - 3505 - 3068
b) 20 x 2:4 x 65 =
56:7 x 6 x 10 =
15 x 4:10 x 87 =​

Answer 1

Explicație pas cu pas:

a) 2345 +6187-3804=

8532-3804= 4728

9005-3470+876=

5535+876=6411

7254-3505 -3068=

3749-3068= 681

b) 20 x2 :4 x65=

40 :4 x65=

10 x65 = 650

56 :7 x6x10 =

8 x6 x10 =

48 x10 = 480

15 x 4 :10 x87=

60 : 10 x87 =

6 x87= 522