1.1.4Math AI SL SL6 flashcards

Validity checks and GDC output

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Card 1 of 61.1.4

1.1.4

Question

What does 'E' mean on a GDC display?

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All 6 Flashcards — Validity checks and GDC output

Card 1definition

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^..."

Card 2concept

Question

Your GDC shows 3.7E9. Write this in standard form.

Answer

3.7 × 10⁹

💡 Hint

Before E = coefficient, after E = exponent.

Card 3concept

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.

Card 4definition

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.

Card 5concept

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.

Card 6concept

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.

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Full study notes for Validity checks and GDC output

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