Multiplying Rational Numbers

Multiplying Rational Numbers

Assessment

Interactive Video

Mathematics, Science

4th Grade - University

Hard

Created by

Quizizz Content

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The video tutorial explains rational numbers, focusing on multiplying different types such as fractions, mixed numbers, and decimals. It covers the rules for multiplying negative numbers, the process of multiplying fractions, and converting mixed numbers to fractions. The tutorial also details multiplying decimals, emphasizing correct decimal placement. It concludes with converting between fractions, decimals, and mixed numbers, ensuring all factors are in the same form for multiplication.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result when you multiply a negative number by a positive number?

A positive number

A negative number

Zero

The same number

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you multiply two fractions together?

Add the numerators and denominators

Multiply the numerators and add the denominators

Multiply the numerators and denominators

Subtract the numerators and denominators

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When multiplying decimals, what should you do with the decimal points?

Ignore them until the end

Add them together

Subtract them

Multiply them

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in multiplying mixed numbers?

Convert them to decimals

Add them together

Convert them to improper fractions

Subtract them

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do when a problem involves both fractions and decimals?

Convert all to fractions

Convert all to decimals

Convert all to the same form

Leave them as they are