Multiplying 2 Digit by 1 Digit Whole Numbers with Regrouping

Front

What is regrouping in multiplication?

Back

Regrouping in multiplication is when you carry over a value to the next column when the product of a digit exceeds 10.

Tags

CCSS.4.NBT.B.5

Front

How do you multiply a 2-digit number by a 1-digit number?

Back

To multiply a 2-digit number by a 1-digit number, multiply the 1-digit number by each digit of the 2-digit number, starting from the right.

Tags

CCSS.4.NBT.B.5

Front

What is the first step in multiplying 23 by 4?

Back

The first step is to multiply 4 by the digit in the ones place of 23, which is 3.

Tags

CCSS.4.NBT.B.5

Front

What do you do if the product of a digit is 10 or more?

Back

If the product is 10 or more, you write down the ones place and carry over the tens place to the next column.

Tags

CCSS.4.NBT.B.5

Front

Calculate 34 x 2.

Back

34 x 2 = 68.

Tags

CCSS.4.NBT.B.5

Front

What is the product of 45 and 3?

Back

The product of 45 and 3 is 135.

Tags

CCSS.4.NBT.B.5

Front

When multiplying 56 by 7, what do you multiply first?

Back

First, multiply 7 by the digit in the ones place of 56, which is 6.

Tags

CCSS.4.NBT.B.5

Front

What is the importance of place value in multiplication?

Back

Place value helps us understand the value of each digit in a number, which is crucial for accurate multiplication.

Tags

CCSS.4.NBT.B.5

Front

How do you handle the tens place when multiplying 2-digit numbers?

Back

After multiplying the ones place, multiply the tens place and add any carried over value from the previous step.

Tags

CCSS.4.NBT.B.5

Front

What is 72 x 5?

Back

72 x 5 = 360.

Tags

CCSS.4.NBT.B.5