3rd Grade Math

Front

What is a fraction?

Back

A fraction represents a part of a whole. It is written as two numbers separated by a slash, like 1/2, where the top number (numerator) shows how many parts we have, and the bottom number (denominator) shows how many equal parts the whole is divided into.

Front

What does it mean to find a fraction of a number?

Back

Finding a fraction of a number means to divide that number into equal parts and then take the specified number of those parts. For example, to find 1/2 of 10, you divide 10 into 2 equal parts, which is 5.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, you keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, you keep the denominator the same and subtract the numerators. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Front

What is the process to find the total time when adding hours?

Back

To find the total time when adding hours, you add the hours together and if the total exceeds 60 minutes, convert the excess into hours. For example, 2 hours and 45 minutes plus 1 hour equals 3 hours and 45 minutes.

Front

How do you divide a number into equal parts?

Back

To divide a number into equal parts, you use division. For example, if you have 12 candy canes and want to share them with 3 people, you divide 12 by 3, which equals 4 candy canes per person.

Front

What is multiplication?

Back

Multiplication is a mathematical operation where you add a number to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If you multiply a number by another, you can divide the result by the same number to get back the original number. For example, if 3 x 4 = 12, then 12 ÷ 4 = 3.

Front

How do you find the total number of items when each person gets the same amount?

Back

To find the total number of items when each person gets the same amount, you multiply the number of people by the amount each person receives. For example, if there are 4 people and each gets 3 candies, the total is 4 x 3 = 12 candies.

Front

What is a word problem in math?

Back

A word problem is a mathematical question presented in a narrative form, requiring you to extract the relevant information and perform calculations to find the answer.