Multiply Decimals

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).

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part. For example, 0.5 is a decimal.

Front

How do you multiply decimals?

Back

To multiply decimals, first multiply the numbers as if they were whole numbers. Then, count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Front

What is the best estimate of 3.4 x 7.8?

Back

24

Front

If 98 x 768 = 75,264, then 98 x 7.68 = ?

Back

752.64

Front

What is the best estimate of 62.78 x 5?

Back

300

Front

What is the best estimate of 3.4 x 26?

Back

75

Front

What is 3.55 x 89?

Back

315.95

Front

What does it mean to estimate in multiplication?

Back

Estimating in multiplication means finding a close approximation of the product rather than calculating the exact answer. This is often done by rounding the numbers.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler but still close to its original value. For example, rounding 3.4 to the nearest whole number gives 3.