Adrianbaroshkgask
a fost răspuns

III.4. Ordinea efectuării operațiilor
1
Efectuează:
361 + 89 - 163-20 + 407 =
120: 2x3 x 8:4 x 10 =
8- 28:7 +3425 : 5x2 =
439-81:3:3-2x 9 + 3 =
300 : 100 + 432 x ( 700 - 688 ) =
( 888:8 +3 x 7): 4 + 80 =
( 57 x 14):( 80:4:10 ) + 35 x 21 =
5 x 333 - ( 48 x 10 : 2 + 54 x 10 + 600:5:3 - 2 x 25 ) =
2
(2 400 - 75x(3:2))x 235 =
1000-[(250:2330:3)-( 30 x 2-5x8)]* 4 =
(220:4 + 6 ) x 100
5 + ( 299 - 77x3]]. 12​

Răspuns :

Dariamariaolaruask

I.

1. 361+89-163-20+407=

450-163-20+407=

287-20+407=

267+407=

674

2. 120÷2×3×8÷4×10=

60×3×8÷4×10=

180×8÷4×10=

1440÷4×10=

360×10=

3600

3. 8-28÷7+3425÷5×2=

8-4+685×2=

8-4+1370=

4+1370=

1374

4. 439-81÷3÷3-2×9+3=

439-27÷3-18+3=

437-9-18+3=

428-18+3=

410+3=

413