5th Grade End Chapter 4 Decimal Multiplication

Front

What is decimal multiplication?

Back

Decimal multiplication is the process of multiplying numbers that contain decimal points, which involves aligning the numbers and multiplying as if they were whole numbers, then placing the decimal point in the product based on the total number of decimal places in the factors.

Front

How do you determine the number of decimal places in a product?

Back

To determine the number of decimal places in a product, count the total number of decimal places in both factors being multiplied. The product will have that same total number of decimal places.

Front

What is the product of 0.07 and 5?

Back

The product of 0.07 and 5 is 0.35.

Front

If a number has three decimal places, what does that mean?

Back

A number with three decimal places has three digits to the right of the decimal point, indicating a value that is a fraction of a whole.

Front

How do you convert US dollars to Mexican pesos using an exchange rate?

Back

To convert US dollars to Mexican pesos, multiply the amount in dollars by the exchange rate (number of pesos per dollar). For example, $1,000 at an exchange rate of 4.61 pesos per dollar equals 4,610 pesos.

Front

What is the height of a scale model that is 1/100 the size of a 104-foot tall building?

Back

The height of the scale model is 1.04 feet, calculated by dividing the actual height (104 feet) by 100.

Front

How do you calculate total pay for hours worked with a different rate after a certain number of hours?

Back

To calculate total pay, multiply the hourly rate by the number of regular hours worked, then add the pay for any additional hours worked at the higher rate.

Front

What is Mika's pay for 22 hours of work if she earns $6.30 per hour for the first 20 hours and 1.5 times that rate for the next 2 hours?

Back

Mika's pay for 22 hours is $144.90, calculated as (20 hours x $6.30) + (2 hours x $9.45).

Front

What is the formula for calculating the total amount of money exchanged in a currency conversion?

Back

The formula for currency conversion is: Total Amount in Foreign Currency = Amount in Original Currency x Exchange Rate.

Front

What does it mean to scale a model?

Back

Scaling a model means creating a smaller or larger version of an object while maintaining the same proportions.