Mastering Two-Digit Multiplication with Mental Math Techniques

What is the first step in the crisscross method for multiplying two-digit numbers?

• Subtract the digits

• Add the digits together

• Multiply the rightmost digits

• Multiply the leftmost digits

Tags

CCSS.4.NBT.B.5

In the example of 41 times 51, what is the middle digit of the result?

• 4

• 9

• 5

• 1

Tags

CCSS.5.NBT.A.2

When multiplying 22 by 12 using the crisscross method, what is the rightmost digit of the result?

• 4

• 8

• 2

• 6

Tags

CCSS.5.NBT.B.5

What is the result of 13 times 12 using the crisscross method?

• 156

• 144

• 168

• 132

Tags

CCSS.6.NS.B.3

What additional step is required when the product of two digits is a two-digit number?

• Subtract the second digit

• Carry the second digit

• Ignore the second digit

• Write down both digits

Tags

CCSS.4.NBT.B.5

In the example of 15 times 12, what is the final result after carrying?

• 180

• 170

• 150

• 160

Tags

CCSS.4.NBT.B.5

What is the result of 25 times 18 using the crisscross method with carrying?

• 400

• 410

• 450

• 460

Tags

CCSS.4.NBT.B.5

When multiplying 20 by 36, what is the middle digit of the result after carrying?

• 0

• 1

• 3

• 2

Tags

CCSS.4.NBT.B.5

What is the final result of 47 times 45 using the crisscross method?

• 2315

• 2205

• 2115

• 2005

Tags

CCSS.4.NBT.B.5

What is the final result of 19 times 53 using the crisscross method?

• 1017

• 1007

• 1037

• 1027

Tags

CCSS.5.NBT.B.5