Decimal Word Problems

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It represents a part of a whole number using a decimal point. For example, 0.5 represents half of 1.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would with whole numbers. For example, to calculate 20 - 18.65, align the numbers: 20.00 - 18.65 ______ 1.35.

Front

What is the process to divide a decimal by a whole number?

Back

To divide a decimal by a whole number, you can perform the division as you would with whole numbers. For example, to divide 33.95 by 5, you can calculate it as 33.95 ÷ 5 = 6.79.

Front

How do you find the total cost of multiple items?

Back

To find the total cost of multiple items, add the prices of each item together. For example, if a blue scarf costs $8.95 and a red scarf costs $12, the total cost is 8.95 + 12 = 20.95.

Front

What is the formula to find the average?

Back

The average is found by adding all the values together and then dividing by the number of values. For example, to find the average of 4.8, 3.54, and 2.71, you would calculate (4.8 + 3.54 + 2.71) ÷ 3.

Front

What does it mean to share equally?

Back

To share equally means to divide something into equal parts. For example, if 5 friends share $33.95 equally, each friend receives 33.95 ÷ 5 = 6.79.

Front

How do you compare two decimal numbers?

Back

To compare two decimal numbers, look at the digits from left to right. The first digit that differs determines which number is larger. For example, 12 is greater than 8.95.

Front

What operation would you use to find out how many sections you can cut from a length?

Back

To find out how many sections you can cut from a length, you would use division. For example, to find how many 2.5-foot sections can be cut from a 15-foot rope, calculate 15 ÷ 2.5.

Front

What is the importance of the decimal point?

Back

The decimal point separates the whole number part from the fractional part in a decimal. It is crucial for understanding the value of numbers, such as distinguishing between 0.5 and 5.

Front

How do you calculate change from a purchase?

Back

To calculate change, subtract the total cost from the amount given. For example, if you give $20 for a shirt that costs $18.65, the change is 20 - 18.65 = 1.35.