Question

Round 2.51 to 1 decimal place

Answer 1

Answer:

2.5

Step-by-step explanation:

It's because 1is less than 5

Answer 2

Answer:

$\boldsymbol{2.5}$

Step-by-step 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,

$\boldsymbol{2.51=== > \not? \:2.5}$. Which is our answer.

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

Best Wishes!

◈◈-Greetings!-◆◆

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