Apr21
A new measurements post! In this entry, we are going to talk about time measurement. How can we measure time? What units are used? The tool used to measure time is the clock. The unit that we use as a reference is a day. Regarding a day, there are units of time that are smaller […]
Continue reading »Apr19
In this post, we are going to learn how to factor into prime numbers. First, let’s look at what factoring is: writing a number as the multiplication of other numbers. For example, let’s factor the number 12. 12 = 3 x 4 12 = 2 x 6 12 = 1 x 12 All 3 cases are […]
Continue reading »Apr17
In this post, we will learn how to multiply and divide decimal numbers by 10, 100, 1000 … It is as simple as moving the decimal point of the decimal number to the left or right. Multiplying decimal numbers by 10, 100, 1000 … To multiply a decimal number by 10, 100, 1000 … all […]
Continue reading »Apr14
In this post, we are going to learn how to multiply fractions (two or more). To do this, we only have to follow these steps: Simplify fractions: Any numerator can be simplified with any denominator. Multiply fractions in a line: Multiply the denominators to obtain the final denominator and multiply the numerators to obtain the […]
Continue reading »Apr13
In this post, we’re going to take a look at when we can use the rule of 3 as a tool to solve a problem. The rule of 3 is one of the most applicable and most useful mathematical phenomena, above all due to its combination of simplicity and efficiency. We should take into account […]
Continue reading »Apr12
In this post, we are going to learn how to estimate sums as the result of an addition or subtraction. Mastering this skill is important to be able to verify if the obtained result is reasonable and the right order of magnitude. Estimate Sums of Amounts to The Tens: Round the numbers we are going […]
Continue reading »Apr10
Did you know that there are other different numbering systems? Did you know that our numbers come from the Arabic numbering system? Before the Arabs brought their numbering system (the one we use today) to Europe, in ancient Rome, the Romans invented a numbering system that we still use for some things. They are what we call […]
Continue reading »Apr07
Have you ever wondered if there is relationship between volume measurements and mass measurements? In today’s post we will find out! Before you begin, you may review volume measurements and mass measurements in the metric system: Measurement of Capacity. Metric System Mass Measurement Problems Now that we have reviewed the volume and mass measurements, we […]
Continue reading »Apr05
Are you familiar with exponents (powers)? Do you know for what and how they are used? Today, we are going to see an example that will help you to solve problems with exponents or powers. If you need to review what powers are before learning how to use them in a word problem, you can […]
Continue reading »Apr03
Do you know how to divide decimals? In this post, you will learn how, and at the end, you will find exercises to practice division of decimals. But first you can review what decimal numbers are with this previous post from our blog: Learn What Decimal Numbers Are. How to divide a whole number by […]
Continue reading »Mar31
Did you know that the commutative property can help us solve an operation faster? Today we will look at the commutative property of addition and multiplication. The commutative property tells us that the result of an addition or multiplication is always the same, regardless of the order of the elements with which it operates. Let’s […]
Continue reading »Mar30
What are polynomials? Before we start adding them, we need to know what they are and what properties they have. It’s important to understand what factors and degrees are, and how to order the terms. If you’re not sure about these concepts, you can read these previous posts about the properties of monomials and properties […]
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