The answer key for the Blueprint Calculations Worksheet, showing completed 4-digit addition and subtraction problems with carrying and borrowing notations included.

A 2-page practice worksheet with 4-digit addition and subtraction problems on a grid layout, specifically designed so every problem requires regrouping or carrying.

A comprehensive answer key for all worksheets, exit tickets, and the spiral review quiz within the 5-day Blueprint Builders math unit.

Revised Spiral Review Quiz. Added dedicated work areas for all multi-step and word problems, darkened grid lines for photocopy visibility, and increased the size of the partitioning and drawing diagrams for easier student use.

Revised Day 5 Master Review. Fixed the collapsed grid in Question 2, added high-contrast grid lines, labeled the shapes clearly as X and Y, and added student work areas for calculation questions.

Revised Perimeter Exit Ticket. Increased SVG padding to prevent label cutoff, wrapped questions to ensure they stay on a single page, and expanded the short-answer box for handwriting.