📘 arithmetic

1. **State the problem:** We need to find the sum of 5 and 9. 2. **Formula used:** Addition of two numbers is given by $a + b$.

1. **State the problem:** We need to perform the operations: Add 5 and 3, then divide the result by 4, subtract 1, and finally multiply by 6. 2. **Write the expression:** The opera

1. **State the problem:** Calculate the sum of 3 and 8. 2. **Formula used:** Addition of two numbers is given by $a + b$ where $a$ and $b$ are numbers.

1. **State the problem:** Calculate the product of 15, 32, and 4. 2. **Formula used:** Multiplication of integers is associative and commutative, so we can multiply in any order: $

1. **State the problem:** Calculate the sum of 4 and 4. 2. **Formula used:** Addition of two numbers is given by $a + b$.

1. **State the problem:** Simplify the expression $36 \div 6$. 2. **Recall the division operation:** Division is splitting a number into equal parts. Here, we want to find how many

1. **State the problem:** We need to divide 1771285 by 67524. 2. **Formula used:** Division is the process of finding how many times one number is contained within another. The div

1. **State the problem:** Multiply 7532 by 71651. 2. **Formula used:** Multiplication of two integers is done by multiplying each digit and summing appropriately.

1. The problem is to perform the division of 4 by 6 and express the result as a decimal. 2. The formula for division is \( \text{Dividend} \div \text{Divisor} = \text{Quotient} \).

1. **State the problem:** Multiply 198,000 by 0.8929. 2. **Formula used:** Multiplication of two numbers is straightforward: $$a \times b$$.

1. The problem is to find the sum of the given numbers: 2140, 604, 3715, 861, 1840, 711, 140061, 589, 39980, 6168, 4000, 15998, 395, 4000, 15998, 399, 13100, 4000, 79, 6999. 2. The

1. The problem is to find the sum of the given numbers. 2. The formula for the sum of a list of numbers $a_1, a_2, \ldots, a_n$ is:

1. **State the problem:** We need to find the total sum of the numbers 596648, 261637, 249852, 223805, and 30523. 2. **Formula used:** To find the total sum, we use the addition op

1. Problem: Calculate the value of 3 multiplied by 26. 2. Formula: Multiplication can be seen as repeated addition. So, $a \times b = a + a + \cdots + a$ ($b$ times).

1. The problem is to understand place value in grade 6, which means knowing the value of each digit in a number based on its position. 2. The place value of a digit depends on its

1. **State the problem:** We need to multiply 3.338 by 2.074. 2. **Recall the multiplication rule:** To multiply two decimal numbers, multiply them as if they were whole numbers, t

1. **State the problem:** We have 150 cherries distributed equally into 30 bags. We need to find how many cherries are in each bag. 2. **Formula used:** When a total quantity is di

1. The problem asks us to find the sum of 10.507 and 0.950. 2. The formula for addition is straightforward: $$a + b = \text{sum}$$ where $a = 10.507$ and $b = 0.950$.

1. **State the problem:** Calculate the value of the expression $5 - 3$. 2. **Formula and rules:** Subtraction is the operation of finding the difference between two numbers. The f

1. 問題陳述：在一個由4行5列小長方形組成的網格中，有多少個長方形？ 2. 公式與規則：

1. 問題陳述：在一個由4行5列小長方形組成的網格中，有多少個長方形？ 2. 公式與規則：