5.4 Multiply Decimals and Whole Numbers

Front

What is the product of 154.75 and 36?

Back

5,571

Front

What is the product of 15.8 and 14?

Back

221.2

Front

If a beaker is filled with 0.23 liter of water, how much water is in a beaker filled with 3 times as much?

Back

0.69 liter

Front

Which equation matches the model: 4 times 0.31?

Back

4 × 0.31 = 1.24

Front

What is the product of 2 and 0.41?

Back

0.82

Front

Define 'decimal'.

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

What does it mean to multiply a decimal by a whole number?

Back

It means to find the total of adding the decimal number to itself a certain number of times, as indicated by the whole number.

Front

How do you align decimal points when multiplying?

Back

You write the numbers so that the decimal points are in a straight line, then multiply as if they were whole numbers.

Front

What is the first step in multiplying decimals?

Back

Ignore the decimal points and multiply the numbers as if they were whole numbers.

Front

How do you determine the placement of the decimal point in the product?

Back

Count the total number of decimal places in the factors and place the decimal point in the product accordingly.