📘 arithmetic

1. **State the problem:** Simplify the expression $2 \times 3$. 2. **Formula and rules:** Multiplication is one of the basic arithmetic operations where you add a number to itself

1. **State the problem:** Simplify the expression $2444 - 1228$. 2. **Formula used:** Subtraction of integers is performed by subtracting the second number from the first: $$a - b

1. The problem is to multiply 6 by 5. 2. The multiplication formula is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is their product.

1. **State the problem:** We need to find the sum of 4578 and 227, i.e., solve the equation $$4578 + 227 = ?$$. 2. **Formula used:** Addition of two numbers is performed by adding

1. The problem is to multiply 2910 by 1313. 2. The formula for multiplication is straightforward: multiply the two numbers directly.

1. The problem is to evaluate the expression $2$. 2. Since the expression is a single number, no operations are needed.

1. **State the problem:** We have 145 bars of chocolate divided equally among children, each child receiving 3 bars. We need to find the number of children. 2. **Formula used:** To

1. The problem is to find the quotient and remainder when dividing 29 by 4. 2. The division formula is: $$\text{Dividend} = (\text{Divisor} \times \text{Quotient}) + \text{Remainde

1. The problem is to find the quotient and remainder when dividing 29 by 4 using long division. 2. The formula for division is: $$\text{Dividend} = (\text{Divisor} \times \text{Quo

1. We are given multiple lists of countries with associated numbers. 2. The task is to sum the numbers for each country across all lists.

1. The problem is to find the total or keseluruhan of a given set or quantity. 2. The formula for total is the sum of all individual parts: $$\text{Total} = \sum_{i=1}^n x_i$$ wher

1. **Problem:** Use all 7 cards (2, 4, 1, 3, +, ×) to complete the calculation: $(__ + __) \times __ = 9$. 2. **Formula and rules:** The expression is of the form $(a + b) \times c

1. The problem asks why the product of 144 minus 91.80 and 52.20 is what it is. 2. First, clarify the expression: it means $(144 - 91.80) \times 52.20$.

1. The problem is to subtract 91.80 from 144. 2. The subtraction formula is $a - b = c$, where $a = 144$ and $b = 91.80$.

1. **State the problem:** Calculate the result of $3750 - 5225$. 2. **Formula used:** Subtraction of integers is performed by subtracting the second number from the first.

1. The problem asks to arrange the cards 9, 5, 6 and the operators (, ), x, + to create the calculation with the largest possible value. 2. The operators available are multiplicati

1. The problem is to calculate the product of a number and a percentage. 2. The formula to calculate a percentage of a number is:

1. **Problem 15:** A student reads $\frac{3}{8}$ of a book on Monday and $\frac{1}{4}$ on Tuesday. We need to find the fraction of the book that remains unread. 2. The total fracti

1. The problem is to perform the addition of two decimal numbers with missing digits represented by squares: $$5\square7\square3\square590972.\square44 + 39028283\square19.22\squar

1. **State the problem:** We need to find the total number of tickets sold on Friday and Saturday. 2. **Write the formula:** To find the total tickets sold, add the tickets sold on

1. **State the problem:** Herbert's weight changes over four months are given, and we need to find the total weight gain or loss. 2. **List the monthly changes:**