Question

1. Scrie cifre in cerculete pentru a indica ordinea in care se razolva operatiile din fiecare exercitiu.

286+4930-718+394=

918:9×102:2×4=

854:2-86×2+306:3=

(350-424:4×2)-7777:77+707×7

2. Completeaza operatiile, scriind in casete numerele si semnele potrivite.

104:2+5×25-78:3=
= =
= =
=

184-69:3(89+99:3-2×25):2=
= =
= =
= =
= =


Va rog repede dau coroana

Answer 1

1)
286+4930-718+394= 5 892
= 5 216 - 718 + 394 =
= 5 498 + 394 = 
= 5 892 

918:9×102:2×4=20 808
= 102 × 102 : 2 × 4 =
= 10 404 : 2 ×4=
= 5 202 ×4 =
= 20 808

854:2-86×2+306:3=357
=427-172+102=
=255+102=
=357

(350-424:4×2)-7777:77+707×7= 4 986
=(350 -106×2)-101+4 949=
=(350 - 212)-101+ 4 949 =
= 138 - 101 + 4 949 =
=37 + 4 949 =
= 4 986


2)

104:2+5×25-78:3= 151 
= 52 + 125 - 26 =
= 177 - 26 =
= 151 

184-69:3+ (89+99:3-2×25):2= 197  → am adaugat semnul ,, +"
=184 - 23+ ( 89 + 33 - 50) : 2=
= 184 - 23 + ( 122 - 50) : 2 =
= 184 - 23 +72 : 2=
= 161 + 36=
= 197