for the first answer:
3.23543 rounds to 3.24
for the second answer:
89.49234 rounds to 89.49
To round it to hundreths, you need to look at the thousandths place.
3.23543
Since the thousandths place is 5, you round up.
3.23543 ↑ ≈ 3.24
89.49234
Since the thousands place is below 5, you round down.
89.49234 ↓ ≈ 89.49
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