Put a leftover calculation on its own line as a letter, then reuse the letter. Desmos keeps the exact value, not a rounded scrap. Desmos as a tool is in Desmos on the ACT.
Name it, then use it
a = 12/7 on line 1. Then 3a + 1 on line 2. Do not retype 12/7. Complex Mode is a different leftover, in complex mode.
Type the stem as written when you can, in type it as written.
The bottom line
Store once. Reuse the letter. Rounding errors come from retyping.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
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