Numbers in Standard Form (Leaving Cert Mathematics): Quizzes

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Numbers in Standard Form
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In standard form a×10na × 10^n, what values can the coefficient aa take?

1≤a<101 ≤ a < 10

What is 64,00064,000 expressed in standard form?

6.4×1046.4 × 10^4

What is 0.0070.007 expressed in standard form?

7×10−37 × 10^{-3}

When converting to standard form, moving the decimal point left means you use a:

Positive power of 10

What type of power of 10 is used for numbers less than 1?

Negative powers

What is the correct method for adding numbers in standard form?

Convert to decimal first

When multiplying powers of 10, what operation do you perform on the exponents?

Add them

When dividing powers of 10, what operation do you perform on the exponents?

Subtract them

What is 6.8×10−26.8 × 10^{-2} in decimal form?

0.0680.068

Which calculator key is used for entering numbers in standard form?

EXP or 10x10^x

What is (3×104)×(2×103)(3 × 10^4) × (2 × 10^3) in standard form?

6×1076 × 10^7

Which of these is correctly expressed in standard form?

2.5×1032.5 × 10^3

Explore Leaving Cert Mathematics Revision Notes by Topics

Fundamentals of Arithmetic

The Basics

Income Tax

Compound Interest & Depreciation

Applications of Geometric Series

Amortisation Formula

Explore Leaving Cert Mathematics Model Answers by Topics

Fundamentals of Arithmetic

The Basics

Income Tax

Compound Interest & Depreciation

Applications of Geometric Series

Amortisation Formula

Explore Leaving Cert Mathematics Flashcards by Topics

Fundamentals of Arithmetic

The Basics

Income Tax

Compound Interest & Depreciation

Applications of Geometric Series

Amortisation Formula

Explore Leaving Cert Mathematics Exam Questions by Topics

Fundamentals of Arithmetic

The Basics

Income Tax

Compound Interest & Depreciation

Applications of Geometric Series

Amortisation Formula

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