Answer:
9.58 + 0.42 = 10
54.15 - 48.3 = 5.85
15.12 + (-9.07) = 5.15
2 + 3.5 = 5.5
6.07 + 0.93 = 7
4 - 2.7 = 1.3
43.15 + 1.86 = 45.01
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