Question

37. 10x3x9-30:3:10 + 11 =7 xf
38. (607 - 299):6+299 = 607 - 231
39. 1x2x3 x 4-5+6=7X8-(9+10)-9​

Answer 1

Răspuns:

10x3x9-30:3:10+11=7xf

30x9-10:10+11=7xf

270-1+11=7xf

269+11=7xf

279=7xf

f=280:7

f=40

Adevărat

(607-299):6+299=607-231

308:6+299=376

51,rest2+299=376

Fals

1x2x3x4-5+6=7x8-(9+10)-9

2x3x4-5+6=56-19-9

6x4-5+6=37-9

24-5+6=28

19+6=28

25=28

Fals