a) \(5.6 • 4.5 = 25.2\)
b) \(6.5 - 0.76 = 5.74\)
c) \(3.5 - 0.23 = 3.27\)
d) \(4.58 - 2.5 = 2.08\)
e) \(8.35 - 0.6 = 7.75\)
f) \(0.64 - 4.75 = -4.11\)
g) \(0.08 : 3.4 \approx 0.0235\)
h) \(0.7 - 0.3 = 0.4\)
i) \(0.42 - 1.6 = -1.18\)
j) \(0.34 - 0.21 = 0.13\)
k) \(0.3 - 0.017 = 0.283\)