Question

Verifica eg
2 x 5 + 7 = 3 x 4 + 9
25 + 6 x 3 = 9x 3 + 16
70 - 6 x 4 = 8 x3 + 21
92 + 5 x 7 = 10 x 10 + 3x9
6 x 7 + 3 x 5 - 8x2 = 98-8 x 9 + 4 x 4
61 + 9 x 9 - 8 x 7 = 9 X6 + 8x8 -5x4​

Answer 1

Răspuns:

10+7=12+9

17=21(fals)

25+18=27+16

43=43(adevarat)

70-24=24+21

46=48(fals)

92+35=100+27

127=127(adevarat)

42+15-16=98-72+16

41=42(fals)

61+81-56=54+64-20

86=98( fals)