Distributing Shortcuts to Look Super Smart

Distributing Shortcuts to Look Super Smart

Assessment

Interactive Video

Social Studies, Mathematics

11th Grade - University

Hard

Created by

Wayground Content

FREE Resource

The video tutorial demonstrates how to solve the multiplication problem 15 * 99 using the distributive property. The instructor breaks down the problem by expressing 99 as 100 - 1, making it easier to calculate mentally. The process involves distributing 15 across the terms and simplifying the calculation to arrive at the final answer of 1485. The tutorial emphasizes the efficiency of using the distributive property for mental math.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial thought process when multiplying 15 by 99?

Think of 99 as 100 - 1

Estimate the result as 1500

Multiply directly without any breakdown

Use a calculator

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the distributive property simplify the multiplication of 15 by 99?

By subtracting 15 from 99

By multiplying 15 by 100

By breaking 99 into 100 - 1

By adding 15 to 99

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 15 multiplied by 99 using the distributive property?

1485

1500

1475

1490

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in applying the distributive property to 15 * 99?

Add 15 to 99

Subtract 15 from 99

Multiply 15 by 99 directly

Break 99 into 100 - 1

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is the final step in calculating 15 * 99 using the distributive property?

Subtract 15 from 1500

Subtract 15 from 1500

Add 15 to 1500

Subtract 15 from 1485