📘 arithmetic

1. The problem is to multiply 9 by the mixed number $7\frac{1}{12}$.\n\n2. First, convert the mixed number to an improper fraction. The mixed number $7\frac{1}{12}$ means $7 + \fra

1. The problem is to find the result of dividing 45 by 15. 2. The division formula is $\frac{a}{b}$ where $a$ is the dividend and $b$ is the divisor.

1. **State the problem:** We need to find the result of dividing 34 by 2. 2. **Formula used:** Division is the operation of splitting a number into equal parts. The formula is:

1. **State the problem:** We need to find the result of dividing 36 by 9. 2. **Recall the division operation:** Division is splitting a number into equal parts. The formula is $$\t

1. **State the problem:** We need to find the result of dividing 34 by 17. 2. **Formula used:** Division is the operation of determining how many times one number is contained with

1. The problem is to understand the number 4 and its properties. 2. The number 4 is a positive integer and an even number.

1. The problem is to find the value of 9. 2. The number 9 is a constant and its value is exactly 9.

1. **State the problem:** Calculate the sum of $2 + 5$. 2. **Formula used:** Addition of two numbers is given by $a + b = c$, where $a$ and $b$ are numbers and $c$ is their sum.

1. **Stating the problem:** We need to check divisibility of given numbers by 3, 6, and 9, and write a pair of factors if divisible.

1. **Check divisibility for each number:** - Divisible by 3: Sum of digits divisible by 3.

1. **State the problem:** Calculate the sum of $-70$ and $-90$. 2. **Formula and rules:** When adding two negative numbers, add their absolute values and keep the negative sign.

1. **State the problem:** Calculate the value of the expression $-2250 + 140 - 90$. 2. **Understand the operation:** This is a simple arithmetic expression involving addition and s

1. **State the problem:** Calculate the product of 300000 and 0.50. 2. **Formula used:** Multiplication of a number by a decimal is straightforward: $$a \times b$$ where $a=300000$

1. **Problem Statement:** We need to find the multiplication table for 2. 2. **Formula:** The multiplication table for a number $n$ is given by $n \times i$ where $i$ ranges from 1

1. **State the problem:** Calculate the value of $1 - 0.0121$. 2. **Formula used:** Subtraction of decimal numbers is straightforward: subtract the smaller number from the larger n

1. The problem is to find the sum of the numbers 170, 300, 50, and 60. 2. The formula for the sum of numbers is simply adding them together: $$\text{Sum} = a + b + c + d$$ where $a

1. The problem is to perform subtraction, but the specific numbers or expressions to subtract are not provided. 2. Subtraction is the operation of finding the difference between tw

1. **State the problem:** Determine whether each number (88, 48, 22, 132, 264) is divisible by 4, 8, 11, and 12. 2. **Recall divisibility rules:**

1. The problem involves determining divisibility of numbers by 4, 8, 11, and 12 using divisibility rules. 2. Divisibility rules used:

1. **State the problem:** Multiply the mixed numbers $2 \frac{2}{5}$ and $1 \frac{2}{3}$. 2. **Convert mixed numbers to improper fractions:**

1. The problem is to find the result of the subtraction $31 - 37$. 2. The subtraction formula is $a - b$, where $a$ and $b$ are numbers.