0, 1, 2, 3 and 4
6
You can add any one-digit number from 0 to 9 to 26 if you regroup. For example, adding 5 gives 31, which can be regrouped to 3 tens and 1 unit. Similarly, adding 7 gives 33, which can be regrouped to 3 tens and 3 units. Essentially, any one-digit number can be added to 26, as regrouping allows for combinations that exceed the base of ten.
24680
You need to regroup when you add the numbers together and they add up to a number that is ten or more. For example: 1 164 +518 _____ 682 If it is over ten, take the first digit of the number and put it above the next number. Then, add that number onto the sum of the other digits underneath it.
To regroup whole numbers, you need to borrow from a higher place value when performing subtraction or combine values from lower place values when adding. For example, in subtraction, if the digit in the minuend is smaller than the corresponding digit in the subtrahend, you can borrow 1 from the next higher place value, effectively adding 10 to the smaller digit. In addition, if the sum of a column exceeds 9, you carry over the extra value to the next higher place value. This process allows for accurate calculations while maintaining the integrity of the number system.
15
only 2
No. It depends on how good you are at arithmetic.
because 1 is toobig
2
6 times
4
It is possible to create a 3-digit number, without repeated digits so the probability is 1.
6
You can add any one-digit number from 0 to 9 to 26 if you regroup. For example, adding 5 gives 31, which can be regrouped to 3 tens and 1 unit. Similarly, adding 7 gives 33, which can be regrouped to 3 tens and 3 units. Essentially, any one-digit number can be added to 26, as regrouping allows for combinations that exceed the base of ten.
by one by one
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