2 Digit Partial Products

2 Digit Partial Products

When doing partial products, you are focusing on each digit, and their value based on their place.

Lets watch a video that explains two digit multiplication using partial products.

Ready to try it?

Make sure you have a white board or a sheet of paper to write on!

Let's try 32 x 15.

• We know that 32 in expanded form is (30 + 2) and 15 in expanded form is (10 + 5

• So we focus on the 5 first, and multiply it by the 2 and the 30. So 5x2 and 5x30.

• Then we focus on the 10 from 15, and muilty it by 2 and 30. So 10x2 and 10x30.

• We end up with 5x2, 5x30, 10x2, and 10x30.

• 5x2=10, 5x30=150, 10x2=20, and 10x30=300

• Add all those totals together, and you get 32 x 15 = 480

Your turn to try! You are going to finish the sheet we started in class yesterday, and answer a few problems on this Quizizz.

Make sure you have paper or a whiteboard to work out your answers. You are trying to use partial products, but if you need to check your answer with the area model, you can.

Multiple Choice

72 x 86

• 6,912

• 6,192

• 5,814

• 1,152

Multiple Choice

For 43 x 37, I would add: 21, 280, 90 and ____.

• 120

• 12,000

• 1,200

• 280

Multiple Choice

93 x 47

• 1,131

• 4,281

• 564

• 4,371

Multiple Choice

54 x 62

• 3,358

• 3,348

• 648

• 558

Good job! Make sure you have your sheet finished from in class to turn in to get credit for your work today!

See you Monday!