I want to learn about: Multiplication and Division

In this post, we’re going to see another example of 3-digit division that’s a little more complicated. We’re going to go ahead and do a 3-digit division problem step by step. Step 1. Count how many digits the divisor has. Step 2. Use the same number of digits the dividend has for the divisor. In […]

In this post, we are going to learn some tricks or strategies for being capable of calculating a square number mentally. What is a square number? A square number or a number raised to the power of 2, is a number multiplied by the same number.  In those cases the multiplication is simple, but if […]

In this post, we will learn how to perform another operation with decimals: multiplication with decimal numbers. We are going to look at it case by case: Multiplication of decimal numbers with whole numbers: To multiply a decimal number with a whole number, we multiply the decimal number as if it were a whole number. In […]

Singapore Math Bar Models are a very useful, visual method to teach simple word problems. Some weeks ago we learned how to use the Singapore Bar Models applied to fractions and today we are going to use it for multiplication and division problems. We have two quantities where one is a multiple of the other. Assuming […]

Combined operations In this post, we are going to learn the order of operations that you have to follow to do combined operations: addition, subtraction, multiplication, and division. Combined operations cannot be done in a random manner. You have to follow an order: Step 1: Do the operations that are inside of the parentheses. For […]

In today’s post, we are going to review the multiplication tables (times tables) with a trick so they don’t seem so long. Are you ready? Let’s get started! How Can We Learn Multiplication Tables Quickly? Have you noticed that all multiplication tables repeat numbers? Here’s an example: In the 1 times table, we have 1 […]

In this post, we’re going to decipher an answer’s sign by looking at the sign of a number’s power. To start off, let’s look at an example of what happens when the factor’s signs mingle. As we already know, we multiply the factors normally and later, we add the appropriate sign to the answer. Let’s […]

In this post, we will learn the order that needs to be followed to solve combined operations: addition, subtraction, multiplication, and division. The combined operations cannot be performed at random, an order must be followed. Step 1: Perform operations that are within parenthesis. For example: 3 x (2 + 4). First, we do the operation […]

In this post, you’ll learn another simpler, quicker and more efficient way to multiply these kinds of problems by applying the distributive property in multiplication. Surely, you all know how to calculate this multiplication problem, 23 x 4, using the multiplication algorithm: Or maybe you know how to do it mentally. 23 times 4 is […]