Question

explain to mya how you would use regrouping to subtract and find the difference. to find the difference by regrouping, borrow 1 thousand, regrouping 9 hundreds; borrow 1 hundred, regrouping 9 tens; and borrow 1 ten, regrouping 9 ones. to find the difference by regrouping, borrow 1 thousand, regrouping 10 hundreds; borrow 1 hundred, regrouping 10 tens; and borrow 1 ten, regrouping 10 ones. to find the difference by regrouping, borrow 2 thousand,

Explanation:

In subtraction regrouping (borrowing), when moving from a higher place value to a lower one, we convert 1 of the higher place value to 10 of the lower place value. For example, 1 thousand is 10 hundreds, 1 hundred is 10 tens, and 1 ten is 10 ones. The second option correctly describes this: borrow 1 thousand to make 10 hundreds, borrow 1 hundred to make 10 tens, and borrow 1 ten to make 10 ones. The first option has incorrect regrouping (9 instead of 10), and the third option's "borrow 2 thousand" is not a standard regrouping step here.

Answer:

B. To find the difference by regrouping, borrow 1 thousand, regrouping 10 hundreds; borrow 1 hundred, regrouping 10 tens; and borrow 1 ten, regrouping 10 ones.