Math 4 Today ~ Week 17 ~ Day 2

Front

What is subtraction?

Back

Subtraction is the mathematical operation of finding the difference between two numbers. It is represented by the minus sign (-). For example, in the equation 5 - 3 = 2, 3 is subtracted from 5.

Front

How do you find the total number of items after giving some away?

Back

To find the total number of items after giving some away, subtract the number of items given away from the original total. For example, if you have 245 cans and give away 55, you calculate 245 - 55 = 190.

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. It is represented by the multiplication sign (×). For example, 4 × 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

How do you calculate double the amount of something?

Back

To calculate double the amount of something, multiply the original amount by 2. For example, if you travel 5,678 miles by airplane, to find out how many miles you travel by train, you calculate 5,678 × 2 = 11,356.

Front

What is a word problem in math?

Back

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

Front

What does 'total' mean in math?

Back

In math, 'total' refers to the sum or overall amount obtained by adding numbers together.

Front

What is the equation for finding the difference?

Back

The equation for finding the difference is: Total - Amount Given Away = Remaining Amount. For example, if you have 245 cans and give away 55, the equation is 245 - 55 = 190.

Front

What does it mean to 'travel twice as many miles'?

Back

To 'travel twice as many miles' means to multiply the original distance by 2. For example, if you travel 5,678 miles, traveling twice as many miles means you travel 5,678 × 2 = 11,356 miles.

Front

What is the purpose of using equations in word problems?

Back

Equations are used in word problems to represent the relationships between quantities and to find unknown values through mathematical operations.

Front

What is the difference between addition and subtraction?

Back

Addition is the process of combining two or more numbers to get a total, while subtraction is the process of taking one number away from another to find the difference.