Multiplication 1 digit by 2 digits regrouping

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Tags

CCSS.3.OA.A.1

Front

What does it mean to regroup in multiplication?

Back

Regrouping in multiplication involves carrying over numbers when the product of a digit exceeds 9. This helps in organizing the numbers for easier calculation.

Tags

CCSS.4.NBT.B.5

Front

What is the product of 37 and 2?

Back

74

Tags

CCSS.4.NBT.B.5

Front

What is the product of 25 and 3?

Back

75

Tags

CCSS.4.NBT.B.5

Front

What is the product of 16 and 5?

Back

80

Tags

CCSS.4.NBT.B.5

Front

What is the product of 3 and 17?

Back

51

Tags

CCSS.4.NBT.B.5

Front

What is the product of 14 and 3?

Back

42

Tags

CCSS.4.NBT.B.5

Front

How do you multiply a one-digit number by a two-digit number?

Back

To multiply a one-digit number by a two-digit number, multiply the one-digit number by each digit of the two-digit number separately, starting from the rightmost digit.

Tags

CCSS.4.NBT.B.5

Front

What is the first step in multiplying 2 by 37?

Back

Multiply 2 by the ones place of 37, which is 7. 2 x 7 = 14.

Tags

CCSS.4.NBT.B.5

Front

What do you do after multiplying the ones place in regrouping?

Back

After multiplying the ones place, you carry over any value greater than 9 to the next digit.

Tags

CCSS.4.NBT.B.5