Answer:
1. 0.9
2. 9 tenths
3. 56.077
4. 6.65
1. 1.7 - 0.8 = 0.9
2. 1.7 - 0.8 = 0.9. 0.9 = 9 tenths
3. 84.637 - 28.56 = 56.077
4. 7 - 0.35 = 6.65.
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