Multiplying by 50 Trick

This video tutorial introduces a trick for multiplying numbers by 50. It explains that 50 can be seen as 100 divided by 2, simplifying the multiplication process. The video provides two examples: multiplying 12 by 50 and 43 by 50, demonstrating the trick and how to handle numbers not divisible by 2. A recap and a problem set for practice are included.

What is the main topic of the video?

• Addition tricks

• Multiplying by 50s trick

• Subtraction tricks

• Dividing by 50s trick

What is the first step in the multiplying by 50s trick?

• Divide the number by 2

• Multiply the number by 100

• Add 50 to the number

• Subtract 10 from the number

In the example of 12 times 50, what is the result of dividing 12 by 2?

• 5

• 6

• 7

• 8

After dividing by 2, what is the next step in the trick?

• Multiply by 100

• Multiply by 50

• Multiply by 200

• Multiply by 10

What is the final result of 12 times 50 using the trick?

• 550

• 500

• 650

• 600

What is the equivalent of multiplying by 50 in the trick?

• Multiplying by 25

• Multiplying by 10 and adding 40

• Multiplying by 5 and adding 45

• Multiplying by 100 and dividing by 2

What should you do if the number is not divisible by 2?

• Round up to the nearest even number

• Round down to the nearest even number

• Add 1 to the number

• Subtract 1 from the number

In the example of 43 times 50, what number do we round 43 down to?

• 40

• 41

• 44

• 42

What is the result of 42 divided by 2 in the example?

• 22

• 23

• 20

• 21

What is the result of 42 times 50 using the trick?

• 2000

• 2150

• 2050

• 2100