📘 arithmetic

1. **State the problem:** Calculate the value of the expression $21 \frac{1}{2} - 36 \frac{2}{7} - 16 \frac{1}{2} - 45 \frac{3}{7} + 10 \frac{5}{7}$.\n\n2. **Convert mixed numbers

1. The problem is to divide 0.45 by 0.8. 2. The formula for division is $$\frac{a}{b}$$ where $a$ is the numerator and $b$ is the denominator.

1. The problem asks to calculate the product of two numbers in each case. 2. The formula for multiplication is straightforward: $$a \times b = \text{product}$$ where $a$ and $b$ ar

1. The problem is to order whole numbers, which means arranging them from smallest to largest or vice versa. 2. Whole numbers are non-negative integers including zero: $0, 1, 2, 3,

1. **State the problem:** We need to find the sum of 35 and 45, i.e., calculate $35 + 45$. 2. **Formula used:** Addition of two numbers is given by $$a + b = c$$ where $a$ and $b$

1. The problem is to evaluate the sum of 1 and 1. 2. The formula for addition is $a + b = c$, where $a$ and $b$ are numbers and $c$ is their sum.

1. The problem is to add 23 and 46. 2. The formula for addition is $a + b = c$, where $a$ and $b$ are the numbers to add, and $c$ is the sum.

1. **State the problem:** Calculate the sum of 7 and an unknown number represented by a blank. 2. **Formula used:** Addition is the operation of combining two numbers to get their

1. El problema consiste en verificar si las operaciones mostradas son correctas, especialmente la división larga de 294 entre 22 y las multiplicaciones relacionadas. 2. Para la div

1. The problem is to find the result of dividing 20 by 5. 2. The division operation is represented by the formula $$\frac{a}{b}$$ where $a$ is the dividend and $b$ is the divisor.

1. **State the problem:** We need to find the result of dividing 16 by 2. 2. **Formula used:** Division is the operation of determining how many times one number is contained withi

1. **State the problem:** We need to find the result of dividing 121 by 11. 2. **Formula used:** Division is the operation of determining how many times one number is contained wit

1. The problem is to find the sum of the numbers: 197, 41, 181, 57, 62, 114, and 94. 2. The formula for the sum of a list of numbers is:

1. The problem is to understand the number 1 in a mathematical context. 2. The number 1 is the multiplicative identity, meaning for any number $a$, $a \times 1 = a$.

1. **State the problem:** We are given the number 4305 and need to understand or work with it as a mathematical value. 2. **Understanding the number:** 4305 is a whole number, spec

1. The problem is to round a given number to the nearest ten. 2. The rule for rounding to the nearest ten is: look at the digit in the ones place.

1. The problem is to add two numbers, where the first number is 359 and the second number is 32. 2. The formula for addition is straightforward: $$a + b = c$$ where $a$ and $b$ are

1. **Problem:** What is 25% of 320? 2. **Formula:** To find a percentage of a number, use the formula:

1. সমস্যাটি হলো: যদি একটি আমের দাম $A$ টাকা হয় এবং আপনার কাছে মোট $B$ টাকা থাকে, তাহলে আপনি কতটি আম কিনতে পারবেন তা নির্ণয় করতে হবে। 2. সূত্র: আমের সংখ্যা = মোট টাকা \div একটি আম

1. **Problem:** Arrange the fractions $\frac{2}{3}$, $1 \frac{5}{4}$, $\frac{5}{12}$, $\frac{9}{16}$ in descending order. 2. **Step 1:** Convert all mixed numbers to improper fract

1. Problem: Determine if the inequality $\frac{2}{3} \neq \frac{8}{12}$ is true or false. 2. Formula and rules: To compare fractions, convert them to a common denominator or simpli