69+ 17= 77-68= 22+46= 58+29=
42+29= 28+68= 63+ 19= 66+26=
98-69= 33+39= 7 1-64= 73-54=
43- 15= 87-38= 19+63= 94-27=
46-28= 2 1- 19= 75-39= 55-38=
57+33= 87-38= 26+46= 2 1- 19=
19+64= 88-29= 28+68= 53+37=
96- 19= 86-37= 39+27= 26+68=
28- 19= 27+35= 22- 13= 69+ 13=
45-27= 53-39= 37- 18= 43+ 19=