Question

Round 2.51 to 1 decimal place

Answer 1

`\boldsymbol{2.5}`

Explanation:

Hi student! Let me help you out on this question.

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`\dag` ROUNDING
`\dag`

When rounding numbers, it's important that you remember these two rules:

1. If the digit you are asked to round is followed by a digit less than 5, you round down. An example is given below.

`\boldsymbol{3.51=== > 3.5}` (Rounded to 1 D.P.)

2. If the digit you are asked to round is followed by a digit

greater than or equal to 5, you round up. An example is given

below.

`\boldsymbol{6.25=== > 6.3}`

`\boldsymbol{2.16=== > 2.2}`

↪

Now that we know these two rules, let's round the given number.

`\boldsymbol{2.51=== > ?}`

The digit we are asked to round to (5) is followed by a number less than 5.

`\sf{\therefore,\:we\:round\:down.}`

Thus,

`\boldsymbol{2.51=== > \\ot? \:2.5}`. Which is our answer.

Hope that this helped you out! Have a nice day ahead.

Best Wishes!

◈◈-Greetings!-◆◆

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