Four-Digit Subtraction Across Zeros (Standard Algorithm with Regrouping) Scaffolded with a TemplateStudents will practice four-digit subtraction across zeroes in this fun, summer themed activity. Students will see a four-digit minus three-digit or four-digit math sentence in the standard algorithm (vertical) form. They will fill in each box one at a time to form a four- through two-digit difference.Each four-digit minuend includes 2 to 3 zeros in a row (for example, 8000, 4003, 2600).Students wi