Number and Operations in Base Ten

Front

What is the process to find out how many nights it takes to read a book if you read a certain number of pages each night?

Back

To find the number of nights, divide the total number of pages by the number of pages read each night. For example, if a book has 2,100 pages and you read 70 pages each night, you would calculate 2100 ÷ 70 = 30 nights.

Front

How do you write the number three hundred six and twenty-seven thousandths in standard form?

Back

In standard form, three hundred six and twenty-seven thousandths is written as 306.027.

Front

How do you compare decimal numbers?

Back

To compare decimal numbers, align the decimal points and compare digit by digit from left to right. For example, to compare 0.32 and 0.4, you see that 0.32 is less than 0.4.

Front

What is the formula to calculate the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying the length by the width. For example, if a rectangle has a length of 9.6 cm and a width of 6.5 cm, the area is 9.6 cm × 6.5 cm = 62.4 cm².

Front

How do you determine the number of stores a company can open if you know the total number of employees and the number of employees per store?

Back

To find the number of stores, divide the total number of employees by the number of employees per store. For example, if a company has 512 employees and each store has 16 employees, you would calculate 512 ÷ 16 = 32 stores.

Front

What is a decimal number?

Back

A decimal number is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 0.5 and 3.14 are decimal numbers.

Front

What does it mean to round a decimal number?

Back

Rounding a decimal number means adjusting it to a nearby value that is simpler or easier to work with, often to a certain number of decimal places. For example, rounding 3.456 to two decimal places gives 3.46.

Front

What is the value of the digit in the tenths place in the number 4.56?

Back

In the number 4.56, the digit in the tenths place is 5.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). For example, 1/4 = 1 ÷ 4 = 0.25.

Front

What is the difference between a whole number and a decimal?

Back

A whole number is a number without fractions or decimals, such as 1, 2, or 3. A decimal includes a fractional part, such as 0.5 or 2.75.