Multiply by Multi-Digit Numbers

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

Front

What does it mean to multiply by a multi-digit number?

Back

Multiplying by a multi-digit number involves multiplying a number that has two or more digits by another number, which can be a single-digit or multi-digit number.

Front

How do you estimate the product of two numbers?

Back

To estimate the product, round each number to the nearest ten or hundred, then multiply the rounded numbers. This gives a quick approximation of the actual product.

Front

What is the product of 4 and 3?

Back

The product of 4 and 3 is 12.

Front

If Mrs. Schnitzer travels 163 miles each week, how far does she travel in 4 weeks?

Back

652 miles (163 x 4 = 652).

Front

If Mrs. Nation has 4,350 photos, how many does Mrs. Shannon have if she has 3 times as many?

Back

13,050 photos (4,350 x 3 = 13,050).

Front

What is the expression to find out how many hammers are produced in 3 hours if a factory produces 2,354 hammers every hour?

Back

(3 x 2,000) + (3 x 300) + (3 x 50) + (3 x 4).

Front

What is the estimated product of 289 and 7?

Back

2,100 (round 289 to 300 and multiply by 7).

Front

What is the first step in multiplying multi-digit numbers?

Back

The first step is to multiply the digit in the ones place of the bottom number by each digit of the top number.

Front

What is the importance of place value in multiplication?

Back

Place value helps to keep track of the value of each digit in a number, ensuring accurate multiplication and addition of products.