📘 arithmetic

### Problem 1: How far did Maria walk? 1. **State the problem:** Maria walked $2 \frac{1}{2}$ km in the morning and $1 \frac{3}{4}$ km in the afternoon. Find the total distance.

1. **Problem:** Calculate $\frac{1}{2} + \frac{1}{3}$. **Step 1:** Find a common denominator. The least common denominator (LCD) of 2 and 3 is 6.

1. **State the problem:** Calculate $$10 \frac{1}{4} \div \frac{2}{5}$$. 2. **Convert mixed number to improper fraction:**

1. **Stating the problem:** Perform long division using a table format to divide two numbers. 2. **Formula and rules:** Long division is a method to divide a dividend by a divisor

1. **State the problem:** You want to understand how to perform long division, which is a method to divide large numbers step-by-step. 2. **Explain the formula and rules:** Long di

1. **State the problem:** We need to evaluate the sum of $1.01$ and $0.11$. 2. **Formula used:** Addition of decimal numbers is done by aligning the decimal points and adding corre

1. **State the problem:** Multiply $871$ by $21.8$. 2. **Formula used:** Multiplication of two numbers: $$a \times b$$

1. **State the problem:** We want to divide $1980$ by $1.12$ using long division. 2. **Convert divisor to a whole number:** Since $1.12$ is a decimal, multiply both the divisor and

1. The problem is to find the product of $12.5$ cm and $9.6$ cm. 2. The formula for multiplication is simply multiplying the two numbers: $$a \times b$$.

1. The problem is to find the product of 7 and 3. 2. The formula for multiplication is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is their product.

1. The problem is to calculate $100 - 100$. 2. The subtraction formula is $a - b = c$, where $a$ and $b$ are numbers and $c$ is the result.

1. **State the problem:** We need to add the numbers $0.63$, $0.55$, $0.14$, $0.11$, $0.036$, $0.024$, $4085.134$, and $0.01$. 2. **Write the sum:**

1. **State the problem:** We need to find the sum of all the numbers listed, then subtract $28$ from the total. 2. **List the numbers:** The numbers are:

1. **State the problem:** Calculate the sum of 7 and 1. 2. **Formula used:** Addition of two numbers is given by $a + b$.

1. The problem is to verify the equation $1+2=3$. 2. We use basic arithmetic addition, which states that the sum of two numbers is the total amount when they are combined.

1. **Problem 1: Identify the fraction at point B on the number line divided into three equal parts between 0 and 1.** The points A, B, and C divide the segment from 0 to 1 into thr

1. **Problem:** What fraction would be located at point B on the number line divided into fourths with points A, B, C at 1/4, 1/2, 3/4 respectively. 2. **Solution:** Point B corres

1. **State the problem:** We need to calculate $8$ divided by $12$. 2. **Formula:** Division of two numbers $a$ and $b$ is given by $$\frac{a}{b}$$.

Let's learn how to multiply 2 by 5! 🎉 **Step 1:** Imagine you have 2 groups of candies.

1. Imagine you have 5 🍎 apples. 2. You eat 2 🍎 apples.

1. **Stating the problem:** We want to understand how to perform subtraction, which is the operation of finding the difference between two numbers. 2. **Formula and explanation:**