📘 arithmetic

Let's learn how to add numbers step by step! 🎉 **Step 1:** Imagine you have some apples 🍎🍎🍎 (3 apples) in one box.

1. **State the problem:** Find the sum of 9 and 10. 2. **Formula used:** Addition of two numbers is given by $$a + b$$ where $a$ and $b$ are the numbers.

1. The problem is to find the quotient and remainder when dividing 29 by 4. 2. The division formula is:

1. **State the problem:** We need to divide 5.2 by 2.6, written as $2.6 \lrcorner 5.2$. 2. **Recall the division formula:** Division is finding how many times the divisor fits into

1. The problem is to multiply the numbers 2.6 and 5.2. 2. The formula for multiplication is simply $a \times b$ where $a$ and $b$ are the numbers to multiply.

1. **State the problem:** We need to perform the division $2.7 \div 0.9$ using long division. 2. **Rewrite the division:** Dividing decimals can be simplified by multiplying both t

1. **Plantejament del problema:** Tenim tres tipus d'arbres fruiters amb diferents quantitats de fruita per arbre.

1. **State the problem:** A cooler contains $6 \frac{3}{4}$ liters of water. A team drinks $\frac{2}{3}$ of the water. We need to find how many liters the team drinks. 2. **Convert

1. **State the problem:** Kari buys socks costing 4 and shoes costing 35, paying 40. We need to find her change. 2. **Write the formula:** Change = Amount given - Total cost

1. **State the problem:** A scientist has 8 bottles, each containing 12 ounces of liquid. We need to find the total amount of liquid. 2. **Formula used:** Total liquid = Number of

1. **State the problem:** We need to subtract 172 from 5924, i.e., calculate $5924 - 172$. 2. **Set up the subtraction:** Write the numbers in column form aligning digits by place

1. The problem asks to round the number 3.281 to 1 decimal place (d.p.). 2. Rounding to 1 decimal place means keeping only one digit after the decimal point.

1. The problem is to round the number 3.675 to 2 decimal places. 2. The rule for rounding to 2 decimal places is to look at the third decimal place (thousandths place).

1. The problem asks to round the number 6.753 to 2 decimal places. 2. Rounding to 2 decimal places means keeping two digits after the decimal point and deciding whether to round up

1. The problem asks to round the number 4.13 to 1 decimal place. 2. Rounding to 1 decimal place means keeping only one digit after the decimal point and deciding whether to round u

1. The problem asks to write the subtraction sentence shown on the number line. 2. The number line shows a point at $\frac{4}{5}$ and a purple arrow moving left labeled $-\frac{4}{

Let's solve an easy addition problem with apples! 🍎 **Step 1:** Imagine you have 3 apples.

¡Vamos a resolver este problema paso a paso! 🎉 1. Imagina que tienes una carretera de 24 metros de ancho. 🚗🚙🚗

1. **State the problem:** Calculate the result of the arithmetic operations in the first column labeled 10: $$+720 + 157 - 557 + 665 - 675$$. 2. **Show the formula and rules:** Add

1. **State the problem:** We are asked to find the sum of the numbers in problem 9: $+394 - 170 - 212 + 621 + 205$. 2. **Formula and rules:** To find the sum of a list of numbers,

1. **State the problem:** Calculate the result of the subtraction $47 - 92$. 2. **Formula used:** Subtraction of integers is performed by subtracting the second number from the fir