4. Solve the subtraction problem 125−68, but now use expanded forms. Start by rewriting the number 125 in expanded form. Rewrite the number in several steps, so that it will be easy to take 68 from 125 . This rewriting is the regrouping process. 125=1(100)+2(10)+5(1)= Write your regrouped number here ⟶ Subtract 68: −[6(10)+8(1)]