Round 387169.138383 to 1 decimal place.
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Step-by-step explanation:

we know that

To Round a number

a) Decide which is the last digit to keep  

b) Leave it the same if the next digit is less than (this is called rounding down)  

c) But increase it by   if the next digit is   or more (this is called rounding up)

In this problem we have

We want to keep the digit

The next digit is which is less than , so no change is needed to

therefore

the answer is  

For this case we must round the following expression:

From right to left we have:

then we have:

then we have:

then we have:

then we have:

then we have:

add 5 subtract 1

step-by-step explanation:

cut 138 centimeters off

step-by-step explanation:

250-112 = 138