a) 26 x 4 + 169 : 132
= 26 x 4 + 169 : 169
= 26 x 4 + 1
= 104 + 1
= 105
b) 32 x 7 - (22 x 3 + 13) : 52
= 9 x 7 - (4 x 3 + 13) : 10
= 63 - 25 : 10
= 63 - 2,5
= 60,5
c) 25 x 37 + 63 x 25 - 1500
= 25 x (37 + 63) - 1500
= 25 x 100 - 1500
= 2500 - 1500
= 1000