Check arithmetic task cards before printing

A computed answer key catches arithmetic errors. It cannot decide whether the resource fits your learners or teaching sequence.

Reviewed 2026-09-23 · Original editorial checklist · Examples are synthetic

Synthetic card: 14 − 5 = 9. Contrast: 5 − 14 = −9. Both calculations are correct, but the second may be outside the intended scope.

1. Choose an objective that matches every equation. Review the largest operands and answers, not only the first card.
2. Open the student pages and answer key separately. Check that numbering and equations match, especially after editing.
3. Print one page at actual size. Check writing space, contrast and whether card borders are visible in grayscale.
4. Edit equations in the workspace and export again to recalculate the key. Editing the downloaded HTML does not recalculate answers automatically.

Before you move on

Can a student read the task, show their thinking and match the teacher’s answer key without ambiguity?

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