Mastering 2-Digit by 1-Digit Multiplication Techniques

This video tutorial teaches how to multiply two-digit numbers by one-digit numbers using short multiplication. It provides three examples: 32 times 3, 43 times 5, and 34 times 4. Each example is broken down into steps, emphasizing the importance of lining up numbers correctly and carrying over values when necessary. The video encourages viewers to pause and solve problems independently before revealing the solutions.

What is the first step in short multiplication?

• Line up the numbers correctly

• Multiply the ones column

• Add the numbers

• Multiply the tens column

Tags

CCSS.4.NBT.B.5

What is the first step after setting up the numbers for multiplication?

• Add the numbers

• Multiply the tens by the multiplier

• Subtract the numbers

• Multiply the ones by the multiplier

Tags

CCSS.4.NBT.B.5

What is the result of multiplying 32 by 3?

• 39

• 96

• 93

• 69

Tags

CCSS.4.NBT.B.5

How many tens are in the number 43?

• 4

• 6

• 3

• 5

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

When multiplying 5 by 3 in the example of 43 times 5, what do you do with the carry over?

• Multiply it

• Subtract it

• Add it to the tens column

• Ignore it

Tags

CCSS.5.NBT.B.5

What do you do if the product of the ones column is greater than 9?

• Subtract 10

• Start over

• Carry over to the tens column

• Ignore the extra value

Tags

CCSS.3.OA.C.7

What is the final answer when multiplying 43 by 5?

• 205

• 215

• 225

• 235

Tags

CCSS.4.NBT.B.5

In the multiplication of 34 by 4, what is the product of 4 times 4?

• 12

• 16

• 18

• 20

Tags

CCSS.3.OA.A.1

What is the correct way to handle a carry over in short multiplication?

• Add it to the next multiplication

• Ignore it

• Subtract it from the final answer

• Multiply it by the next digit

Tags

CCSS.4.NBT.B.5

What is the final answer when multiplying 34 by 4?

• 136

• 146

• 126

• 116

Tags

CCSS.4.NBT.B.5