5th Grade Holiday Math

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added 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

How do you calculate the total number of items when given a quantity and a multiplier?

Back

To find the total number of items, multiply the quantity by the multiplier. For example, if there are 123.45 groups of 100 lights, the total is 123.45 x 100 = 12,345 lights.

Front

What is division?

Back

Division is a mathematical operation where a number is split into equal parts. For example, if you have 32 stickers and want to divide them into pages of 6 stickers each, you would divide 32 by 6.

Front

How do you find out how many groups of a certain size can be made from a total?

Back

To find out how many groups can be made, divide the total number of items by the size of each group. For example, 32 stickers divided by 6 stickers per page equals 5 pages with 2 stickers left over.

Front

What is a perimeter?

Back

The perimeter is the total distance around a two-dimensional shape. For a rectangle, it is calculated by adding the lengths of all sides.

Front

How do you calculate the perimeter of a rectangle?

Back

To calculate the perimeter of a rectangle, use the formula: P = 2(length + width). For example, if a rectangle is 1.6 miles long and 2.24 miles wide, the perimeter is P = 2(1.6 + 2.24) = 7.68 miles.

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

What is a whole number?

Back

A whole number is a number without fractions or decimals. Whole numbers include 0, 1, 2, 3, and so on.

Front

What is the concept of 'equal groups' in multiplication?

Back

The concept of 'equal groups' means that multiplication can be thought of as adding the same number multiple times. For example, 4 x 3 means 4 groups of 3.

Front

What is the importance of estimating in math?

Back

Estimating helps to quickly find an approximate answer, which can be useful for checking the reasonableness of a more precise calculation.