Mathematics Grade 7 15 min

Multiply and divide decimals by powers of ten

Multiply and divide decimals by powers of ten

What you'll learn

  • Identify all potential rational roots of a polynomial equation with integer coefficients using the Rational Root Theorem, and express these roots as a list with no omissions.
  • Apply synthetic division to test potential rational roots of a polynomial equation and determine if they are actual roots, demonstrating proficiency by correctly identifying at least 80% of given roots.
  • Solve polynomial equations of degree three or higher with integer coefficients by utilizing the Rational Root Theorem, synthetic division, and factoring techniques to find all rational and irrational roots, expressing solutions in simplified form with at least 75% accuracy.
  • Explain the relationship between the Rational Root Theorem and the Factor Theorem, and justify how these theorems can be used in conjunction to factor polynomials and find their roots with clear and concise reasoning.

Tutorial Preview

1

Calculate 3.45 × 100

2

Calculate 78.9 ÷ 1000

3

Calculate 56 × 0.1

Sample Practice Questions

Easy
What is 8.3 × 10?
0.83
1.0.83
2.830
3.8.3
Easy
What is 4.9 ÷ 10?
0.49
1.0.49
2.0.049
3.4.9
Easy
What is 0.62 × 10?
0.62
1.0.062
2.6.2
3.620

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Frequently asked questions

What grade level is "Multiply and divide decimals by powers of ten"?

Multiply and divide decimals by powers of ten is a Grade 7 Mathematics lesson on ExcelOS.

What will I learn in Multiply and divide decimals by powers of ten?

You'll be able to: Identify all potential rational roots of a polynomial equation with integer coefficients using the Rational Root Theorem, and express these roots as a list with no omissions; Apply synthetic division to test potential rational….

Is "Multiply and divide decimals by powers of ten" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Multiply and divide decimals by powers of ten?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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