Two Digit by 1 Digit Multiplication

What is the first step in multiplying a two-digit number by a one-digit number?

• Multiply the one-digit number by the digit in the ones place of the two-digit number.

• Add the two-digit number and the one-digit number together.

• Multiply the one-digit number by the digit in the tens place of the two-digit number.

• Subtract the one-digit number from the two-digit number.

Tags

CCSS.4.NBT.B.5

What is an example of a two-digit by one-digit multiplication problem?

• 12 x 3

• 34 x 5

• 45 x 6

• 23 x 4

Tags

CCSS.4.NBT.B.5

How can you check your multiplication answer?

• By using the inverse operation, which is division.

• By adding the numbers together.

• By multiplying the numbers again.

• By estimating the answer with rounding.

Tags

CCSS.4.NBT.B.6

What is the distributive property in multiplication?

• The distributive property states that a(b + c) = ab + ac, which can be used to simplify multiplication.

• The distributive property states that a(b - c) = ab - ac, which can be used to simplify subtraction.

• The distributive property states that a(b * c) = ab + ac, which can be used to simplify multiplication.

• The distributive property states that a(b + c) = a + b + c, which can be used to simplify addition.

Tags

CCSS.3.OA.B.5

What is the process of multiplying a two-digit number by a one-digit number called?

• Single-digit multiplication

• Two-digit by one-digit multiplication

• Multi-digit multiplication

• One-digit by two-digit multiplication

Tags

CCSS.4.NBT.B.5

What do you do after multiplying the ones place in two-digit by one-digit multiplication?

• Multiply the one-digit number by the digit in the tens place and add a zero to the result.

• Add the two-digit number to the one-digit number.

• Subtract the one-digit number from the tens place digit.

• Multiply the tens place digit by the ones place digit.

Tags

CCSS.4.NBT.B.5

Calculate 52 multiplied by 6.

• 306

• 312

• 318

• 324

Tags

CCSS.4.NBT.B.5

How do you combine the results of two-digit by one-digit multiplication?

• Multiply the two-digit number by the one-digit number directly.

• Add the results from the ones place and the tens place.

• Subtract the smaller number from the larger number.

• Divide the two-digit number by the one-digit number.

Tags

CCSS.3.OA.D.8

How do you multiply 87 by 3?

• 243

• 261

• 297

• 174

Tags

CCSS.4.NBT.B.5

What is a common mistake when multiplying two-digit by one-digit numbers?

• Forgetting to add the zero when multiplying the tens place.

• Multiplying the ones place first instead of the tens place.

• Using the wrong multiplication table for the one-digit number.

• Adding the two-digit numbers instead of multiplying them.

Tags

CCSS.4.NBT.B.5