Multiplying 3 Digit by 2 Digit Whole Numbers Without 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.

Front

What does a 3-digit number look like?

Back

A 3-digit number has three places: hundreds, tens, and units. For example, 245 has 2 in the hundreds place, 4 in the tens place, and 5 in the units place.

Front

What does a 2-digit number look like?

Back

A 2-digit number has two places: tens and units. For example, 34 has 3 in the tens place and 4 in the units place.

Front

How do you multiply a 3-digit number by a 2-digit number?

Back

To multiply a 3-digit number by a 2-digit number, you can break it down into smaller parts. Multiply the 3-digit number by each digit of the 2-digit number separately, then add the results.

Front

What is the first step in multiplying 3-digit by 2-digit numbers?

Back

The first step is to multiply the 3-digit number by the unit's digit of the 2-digit number.

Front

What is the second step in multiplying 3-digit by 2-digit numbers?

Back

The second step is to multiply the 3-digit number by the ten's digit of the 2-digit number, and remember to shift the result one place to the left.

Front

What does 'without regrouping' mean in multiplication?

Back

'Without regrouping' means that when you multiply, the products of each digit do not exceed 9, so you do not need to carry over any numbers.

Front

What is an example of multiplying 123 by 45?

Back

123 x 45 = (123 x 5) + (123 x 40) = 615 + 4920 = 5535.

Front

What is the product of 234 and 12?

Back

234 x 12 = 2808.

Front

What is the product of 456 and 23?

Back

456 x 23 = 10488.