Practice Flashcards
Flip to reveal answersWhat does 'E' mean on a GDC display?
Track your progress — Sign up free to save your progress and get smart review reminders based on spaced repetition.
All 6 Flashcards — Validity checks and GDC output
Sign up free to track progress and get spaced-repetition review schedules.
Question
What does 'E' mean on a GDC display?
Answer
E means × 10^(the number after E). So 3.7E9 means 3.7 × 10⁹, and 5.1E-4 means 5.1 × 10⁻⁴.
💡 Hint
E replaces "× 10^..."
Question
Your GDC shows 3.7E9. Write this in standard form.
Answer
3.7 × 10⁹
💡 Hint
Before E = coefficient, after E = exponent.
Question
Your GDC shows 6.4E-3. Write as (a) standard form and (b) ordinary number.
Answer
(a) 6.4 × 10⁻³ (b) 0.0064
💡 Hint
Negative exponent → decimal moves left.
Question
Your GDC shows 1.25E11 after a calculation. Can you write 1.25E11 as your final answer?
Answer
No. Writing E notation earns zero marks. You must write 1.25 × 10¹¹.
💡 Hint
GDC notation ≠ standard form.
Question
What is the two-step habit for reading GDC output?
Answer
Step 1: Read the number before E → that is your coefficient a. Step 2: Read the number after E → that is your exponent n. Then write a × 10ⁿ.
💡 Hint
Before E = a, after E = n.
Question
Your GDC shows 5.08E-4. Write as standard form and as an ordinary number.
Answer
5.08 × 10⁻⁴ = 0.000508
💡 Hint
Negative exponent → small number. Move decimal 4 places left.
Read the notes
Full study notes for Validity checks and GDC output
Topic 1.1 hub
Standard form
More from Topic 1.1
All flashcards in this topic
Math AI SL exam skills
Paper structures & tips
Track your progress with spaced repetition
Sign up free — Aimnova tells you exactly which cards to review and when, so you remember everything before your IB exam.
Start Free