a) 32 . 47 + 16 . 106
= 1504 + 1969
=3200
b) 89 . 19 + 19 .11 - 160
= 1691 +209 - 160
= 1900 - 160
= 1740
c) 24 . 67 + 24 . 33
= 1608 + 792
= 2400
d) 136 . 8 - 36 . 2³
= 136 . 8 - 36 . 8
= 1088-288
= 800
e) 25 . 27 .4
= (25.4).27
= 100 . 27
= 2700
f) 63 + 118 + 37 + 82
= (118+82) + ( 63+37)
= 200 + 100
= 300