Reily adds 45.3 and 3.21.should his sum be greater than or less than 48? tell how you know.

Greater than 48, because just taking whole numbers 45 + 3  = 48 already.

45.3 is greater than 45 and 3.21 is greater than 3

 The sum is greater than 48.

Step-by-step explanation:  Given that Relly adds 45.3 and 3.21.

We are to check whether the sum is greater than or less than 48.

To check, first we need to add the given numbers.

Let s be the required sum.

Then, according to the given information, we have

Since 48.51 is greater than 48, so the sum is greater than 48.

Thus, the sum is greater than 48.

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step-by-step explanation: