📘 arithmetic

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.

1. **Stating the problem:** Four children share $\frac{3}{8}$ of a big cake equally. We need to find what fraction of the cake each child gets. 2. **Formula used:** When a quantity

1. **State the problem:** Calculate the sum of 76 and 896675. 2. **Formula used:** Addition of two numbers is given by $$a + b$$ where $a=76$ and $b=896675$.

1. **State the problem:** We need to divide 79.87 by -4.9. 2. **Recall the division rule:** Dividing a positive number by a negative number results in a negative quotient.

1. The first problem is to find the error and correct the expression $4 - 8$. 2. The expression $4 - 8$ means subtracting 8 from 4.

1. **Stating the problem:** Multiply the numbers 3 and 3. 2. **Formula used:** Multiplication of two numbers is given by $a \times b$.

1. **State the problem:** Simplify the expression $\frac{20}{2}$. 2. **Recall the division rule:** Dividing a number by another means finding how many times the divisor fits into t

1. The problem is to divide 20 by 2. 2. The division formula is $\frac{a}{b}$ where $a$ is the dividend and $b$ is the divisor.

1. **State the problem:** Calculate the result of the expression $27 - 32$. 2. **Recall the operation:** Subtraction means taking away the second number from the first.

1. Problem 12: Calculate $2000 - 1200$. Formula: Subtraction of two numbers.

1. The problem is to multiply 3,000 by 0.5000. 2. The multiplication formula is simply $a \times b = c$, where $a=3000$ and $b=0.5000$.

1. **Problem 6:** Divide 5,264 by 52 and write the quotient and remainder. 2. **Problem 7:** Divide 8,630 by 65 and write the quotient and remainder.

1. Problem: Divide 30 by 4 and find the remainder. Formula: When dividing $a$ by $b$, quotient $q = \lfloor \frac{a}{b} \rfloor$ and remainder $r = a - bq$.

1. The problem is to find 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 estimate the number 1710. 2. Estimation involves rounding the number to a nearby value that is easier to work with.