📘 arithmetic

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

1. **State the problem:** We need to find the result of dividing 47 by 92. 2. **Formula used:** Division of two numbers $a$ and $b$ is given by $$\frac{a}{b}$$ where $b \neq 0$.

1. The problem is to simplify the expression $\frac{90}{9}$.\n\n2. The formula for division is $\frac{a}{b} = c$ where $a$ is the numerator, $b$ is the denominator, and $c$ is the

1. **State the problem:** Add the decimals 0.66 and 0.03. 2. **Formula and rules:** To add decimals, align the decimal points and add digits column by column from right to left.

1. The problem is to subtract 12 from 10, i.e., calculate $10 - 12$. 2. The subtraction formula is $a - b$, where $a=10$ and $b=12$.

1. The problem is to multiply $-6$ by $7$. 2. The multiplication rule for integers states that when multiplying a negative number by a positive number, the result is negative.

1. **State the problem:** Calculate the value of the expression $9 - 3 \cdot 2$. 2. **Recall the order of operations:** According to the order of operations (PEMDAS/BODMAS), multip

1. The problem asks to solve "people 22." Since the request is unclear, I interpret it as solving for the number 22 in a math context or explaining something related to 22. 2. If t

1. **State the problem:** We need to find the result of dividing 2.079 by 2.7. 2. **Formula used:** Division of two numbers is given by $$\frac{a}{b}$$ where $a$ is the numerator a

1. The question asks how the number 144 was obtained. 2. To explain this, we need to know the context or the problem where 144 appears.

1. **State the problem:** We want to divide 6.3 by 0.35 using an easier method. 2. **Idea:** Instead of working with decimals, multiply both numbers by 100 to convert them into who

1. **State the problem:** We need to find the result of dividing 6.3 by 0.35. 2. **Formula used:** Division of two numbers is given by $$\frac{a}{b}$$ where $a$ is the dividend and

1. 题目是计算乘法，例如 $8 \times 8$，并选择正确答案。 2. 乘法的基本公式是：$$a \times b = c$$其中 $a$ 和 $b$ 是乘数，$c$ 是积。

1. **题目：** 这是一个多项选择乘法练习，先看第一个题：$8 \times 8$。 2. **使用的公式：** 乘法表示重复加法。

1. The problem is to find the value of the expression \(42.25 + 9\). 2. The formula used here is simple addition: \(a + b = c\), where \(a = 42.25\) and \(b = 9\).