Comprehensive answer key for Version 2 (Form B) of the Number Builders CFA. Includes correct answers, strategy demonstrations, and sample justifications for higher-order questions.

Version 2 (Form B) of the Number Builders CFA for standard 2.NBT.B.6. Contains 12 fresh questions across DOK levels 1-3 using expanded form, place value charts, and number lines. Includes error analysis and problem design tasks.

A comprehensive answer key for the Number Builders CFA, providing correct answers, step-by-step solutions for strategy-based questions, and sample justifications for higher-level DOK questions.

A 12-question Common Formative Assessment (CFA) for standard 2.NBT.B.6, organized by DOK levels 1-3. The worksheet features a "Blueprint" theme and requires students to use expanded form, place value charts, and number lines to add up to four two-digit numbers.

Detailed answer key for the Garden Plot Worksheet. Revised to fix page break issues and improve label size for visual models.

Student worksheet for practicing addition and subtraction word problems. Revised for legibility, fixed overlapping text, added challenge number line, and improved page breaks.

Instructional slide deck for teaching addition and subtraction word problems with visual models and counting strategies. Revised for better hop alignment and spacing.

A comprehensive teacher answer key and scoring guide for all four Empire State Sprints. Revised for clarity, compact layout, and high-contrast printing.

The final homework in the prep series. Features absolute value for distance on a number line, unit rate from graphs, multi-step tax and tip, semicircles, comparing population means using MAD, complement of probability, and modeling with inequalities. Optimized layout and fixed question labels.

The third homework in the prep series. Includes rational number division, multi-step unit rate problems, percent increase, circle radius from circumference, population predictions from samples, probability from descriptions, and inequalities with negative coefficients. Revised layout for two-page fit.

The second homework in the prep series. Questions focus on rational number multiplication, proportional word problems, commission calculations, circle area, box plot interpretation, experimental probability, and real-world inequality modeling. Revised with a scaled box plot and optimized layout.