Question

name
round to the nearest thousandth.

1. 1.2356 =
2. -0.0871 =
3. 238.5675 =
4. 9.9822 =
5. 38.6415 =
6. -38.4613 =
7. 187.4824 =
8. 0.55821 =
9. -1.7336 =
10. -4.2289 =

if the number is 5-9
underlined number goes
up one.
drop other #’s to right

Explanation:

Step1: Recall Rounding Rule

To round to the nearest thousandth (3 decimal places), look at the 4th decimal digit. If it's 5 - 9, round up the 3rd decimal digit; else, leave it as is. Drop digits after the 3rd decimal.

Step2: Solve 21) \(1.2356\)

• 3rd decimal: \(5\), 4th: \(6\) (≥5).
• Round up \(5\) to \(6\).
• Result: \(1.236\)

Step3: Solve 22) \(-0.0871\)

• 3rd decimal: \(7\), 4th: \(1\) (<5).
• Leave \(7\) as is.
• Result: \(-0.087\)

Step4: Solve 23) \(238.5675\)

• 3rd decimal: \(7\), 4th: \(5\) (≥5).
• Round up \(7\) to \(8\).
• Result: \(238.568\)

Step5: Solve 24) \(9.9822\)

• 3rd decimal: \(2\), 4th: \(2\) (<5).
• Leave \(2\) as is.
• Result: \(9.982\)

Step6: Solve 25) \(38.6415\)

• 3rd decimal: \(1\), 4th: \(5\) (≥5).
• Round up \(1\) to \(2\).
• Result: \(38.642\)

Step7: Solve 26) \(-38.4613\)

• 3rd decimal: \(1\), 4th: \(3\) (<5).
• Leave \(1\) as is.
• Result: \(-38.461\)

Step8: Solve 27) \(187.4824\)

• 3rd decimal: \(2\), 4th: \(4\) (<5).
• Leave \(2\) as is.
• Result: \(187.482\)

Step9: Solve 28) \(0.55821\)

• 3rd decimal: \(8\), 4th: \(2\) (<5).
• Leave \(8\) as is.
• Result: \(0.558\)

Step10: Solve 29) \(-1.7336\)

• 3rd decimal: \(3\), 4th: \(6\) (≥5).
• Round up \(3\) to \(4\).
• Result: \(-1.734\)

Step11: Solve 30) \(-4.2289\)

• 3rd decimal: \(8\), 4th: \(9\) (≥5).
• Round up \(8\) to \(9\).
• Result: \(-4.229\)

Answer:

1. \(1.236\)
2. \(-0.087\)
3. \(238.568\)
4. \(9.982\)
5. \(38.642\)
6. \(-38.461\)
7. \(187.482\)
8. \(0.558\)
9. \(-1.734\)
10. \(-4.229\)