@krystynalaszczuk6978
8 x 9 + 8 = 72 + 8 = 80 odp. 80
@ezan-o2j
One more possible solution as mentioned below: 1+4×1=5 2+5×2=12 3+6×3=21 8+9×4=44
@ritapong-gy4dz
8 + 9 = 80. 8 × 9 = 72 + 8 = 80.
@manuelquitevis6794
8 + 9 =38 ( following the pattern of the examples above is 21 + 8 + 9 =38)
@LudmulaKondratuk
8×10= 80.
@BimalMochahary-gl4wq
1+4=5 1+4=5
2+5=12 2+5+5=12
3+6=21 3+6+12=21
4+5= 4+5+21=30
5+6= 5+6+30=41
6+7= 6+7+41=54
7+8 7+8+54=69
8+9= 8+9+69=86
1+4=5> 1+4×1=5 >1×(4+1)=5
2+5=12>2+5×2=12 >2×(5+1)=12
3+6=21>3+6×3=21 >3×(6+1)=21
4+7=32>4+7×4=32 >4×(7+1)=32
5+8=45>5+8×5=45 >5×(8+1)=45
6+7=48>6+7×6=48 >6×(7+1)=48
7+8=63>7+8×7=63 >7×(8+1)=64
8+9=80>8+9×8=80 >8×(9+1)=80 ans
@Nfilm1552
80
@RamalakshmiAndhavarapu