# H09 · Optional home job

A pretend note says four $7 kits plus a $3 fee cost 4 + 7 + 3 = $14. Fix the first mistaken step.

Use scrap paper or a private explanation. No purchase, household information or public performance.

## Adult teaching after an own try

### Answer

4 × $7 + $3 = $31. Four means kits, not dollars.

### Follow

Explain the repeated $7 costs, not merely a replacement answer.

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