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The answer is 43 and the reason why the tens digit changes is because 7 + anything over 2 will change the digit. If just added 7 + 6 it would be 13 then add 30.

1 + any whole number over 8 will change the tens digit

2 + any whole number over 7 will change the tens digit

3 + any whole number over 6 will change the tens digit

4 + any whole number over 5 will change the tens digit

5 + any whole number over 4 will change the tens digit

6 + any whole number over 3 will change the tens digit

7 + any whole number over 2 will change the tens digit

8 + any whole number over 1 will change the tens digit

9+ any whole number over 0 will change the tens digit

ect

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Q: When you add 36 plus 7 why does the tens digit change?
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What happens to the tens digit and ones digit when you add tens?

When you add tens to the tens digit and ones it goes ten more.


How do you round 16326 to the nearest ten?

Look at the digit to the right of the tens digit. If it is 5 or more, add one to the digit and add zeros in the end. Otherwise it will be 4 or less and so leave the number alone.


How do you round 9876 to the nearest hundred?

Look at the tens digit. If it is 5 or more, add 100 to 9876. Then replace all the digits to the right of the hundreds digit (the tens and units digits) by zeros. The answer is therefore 9900


What is 4975 to the nearest hundred?

9 is in the hundreds place. The tens digit will determine whether you round this up (in which case it would become 10, which would mean zero and add 1 to the thousands digit). The tens digit is 7, so the 9 rounds up and rounded it is 5000


What are the steps you would follow to round 439 to the nearest ten?

1. None of the digits before the tens' digit (4) should change. 2. Identify the digit in the tens' place (3). 3. Identify the digit in the units' place. 4a. If it is 0, leave the tens' digit unchanged 4b. If it is 1, 2, 3 or 4 then the number needs to be rounded down. So replace the units digit by 0. 4c. If it is 6, 7, 8 or 9 then the number needs to be rounded up. So increase the tens' digit by 1 (from 3 to 4), and replace the units digit by 0. 4d. If it is 5 then, in order to avoid introducing bias, you need to round up half the time and round down half the time. The way to do this is to make the tens' digit even: if it is already even then do nothing, if it is odd then add 1. And replace the units' digit by 0. In this case the answer is 440. Two things to bear in mind: Many schools opt for the naive approach of applying rule 4b (instead of 4d) for the digit 5. In the case of rule 1, you need to bear in mind any carry over from rounding up the tens.

Related questions

What happens to the tens digit and ones digit when you add tens?

When you add tens to the tens digit and ones it goes ten more.


What is the number if its ones digit is 4 more than its tens digit and its ones and tens digit add up to ten?

The answer would be 37.


Which two-digit number can you add to any number and it will change the value of the hundreds tens and units?

Such a number does not exist.


How many two digit numbers are there in which the tens digit is greater then the ones digit?

The answer depends on what the tens digit is greater than, and what the ones digit does then.


How can you check if a number is a multiple of 4?

Add the last digit (units digit) to twice the previous digit (tens digit). If this sum is divisible by 4, so is the original number.


How do you round 16326 to the nearest ten?

Look at the digit to the right of the tens digit. If it is 5 or more, add one to the digit and add zeros in the end. Otherwise it will be 4 or less and so leave the number alone.


What is a number less than 5 rounded to the nearest ten?

0


How do you round 64 to the nearest ten?

The tens' digit is 6. If what follows it is less than 5 then replace every digit following the tens' digit by 0s. If what follows is bigger than 5 then add 1 to the tens' digit and replace every digit following the tens' digit by 0s. If it is exactly 5 then make sure that the tens' digit is even and replace everything after it by 0s. Many naive teachers require that you round up (add 1 etc) when the next digit is 5. This introduces an upward bias and in statistically unsound. The solution is to round to odd or round to even. (See link). Mathematically, they are equivalent but, judging by the latter seems to be winning. It is the default mode in IEEE 754.


How do you round 9876 to the nearest hundred?

Look at the tens digit. If it is 5 or more, add 100 to 9876. Then replace all the digits to the right of the hundreds digit (the tens and units digits) by zeros. The answer is therefore 9900


What is 4975 to the nearest hundred?

9 is in the hundreds place. The tens digit will determine whether you round this up (in which case it would become 10, which would mean zero and add 1 to the thousands digit). The tens digit is 7, so the 9 rounds up and rounded it is 5000


Unit digit of 12 plus 22 plus 32 plus ............ plus 992?

the answer is 1058 simply add it up?


How do you use split strategy for 76 plus 23?

You first add the units, then the tens.