Multiplying by 11 Trick

Multiplying by 11 Trick

Assessment

Interactive Video

Mathematics

4th - 5th Grade

Hard

Created by

Thomas White

FREE Resource

In this video, Akash teaches a simple trick to multiply any number by 11. He demonstrates the method with examples, starting with two-digit numbers like 35 and 72, and progressing to more complex numbers like 281 and 12,574. The trick involves writing the first and last digits of the number, adding adjacent digits, and handling carryovers for larger numbers. The video concludes with a homework assignment to practice the trick and a call to subscribe to the channel.

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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main topic of the video?

Division shortcuts

Subtraction methods

Multiplication by 11

Addition tricks

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in multiplying a two-digit number by 11 using the trick?

Multiply the number by 10.

Subtract the second digit from the first.

Write the first digit as the first digit of the answer.

Add the two digits together.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of 35 times 11, what number is placed between the digits 3 and 5?

7

8

9

6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 35 times 11 using the trick?

385

395

375

365

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When multiplying 72 by 11, what is the sum of the digits 7 and 2?

9

11

8

10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final answer for 72 times 11 using the trick?

772

792

782

762

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of 281 times 11, what is the first digit of the answer?

3

5

2

4

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