Question

Verifică egalitațile următoare:
5×7+3=6×8+6×7
27+6×8=9×9-3×2
81-6×8=95-7×8
6×6+2×5+2=7×3+81÷9+6×3
49÷7×6+3×4=100-6×4-2
64+3×9+72÷8=5×10+2×10

Answer 1

5*7+3 =6*8 + 6*7 ⇒ 38= 48+ 42 ⇒ 38= 90 (F)⇒ 38≠90
27+6*8 = 9 *9 - 3*2 ⇒ 75 = 81- 6 ⇒ 75 =75 (A)
81-6*8= 95-7*8 ⇒ 33= 95 - 56 ⇒ 33 = 39 (F) ⇒ 33≠ 39
6*6+2*5+2= 7*3+81:9 + 6*3⇒ 36+ 10 + 2 = 21 + 9 + 18 ⇒ 48 = 48 (A)
49:7*6 + 3*4 = 100-6*4 -2 ⇒42 + 12 = 100- 24 -2 ⇒ 54 = 74 (F) ⇒ 54≠74
64+3*9+72:8 = 5*10+2*10 ⇒ 64 + 27 + 9 = 50 + 20 ⇒100 = 70 (F) ⇒ 100≠70