📘 arithmetic

1. **Stating the problem:** We need to add the mixed numbers $6 \frac{1}{2}$, $5 \frac{2}{7}$, and $4 \frac{1}{5}$.\n\n2. **Convert mixed numbers to improper fractions:**\n- $6 \fr

1. **State the problem:** We want to perform long division to divide 10 by 1.618, which is the approximate value of the golden ratio. 2. **Recall the division formula:** Division i

1. **State the problem:** Calculate $1 \frac{5}{16} + 3 \frac{3}{4}$ and express the answer as a mixed number in simplest form. 2. **Convert mixed numbers to improper fractions:**

1. The problem is to multiply 2 by 25. 2. The multiplication formula is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is the product.

1. The problem is to multiply 2 by 25. 2. The multiplication formula is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is the product.

1. The problem is to convert the number 2 into a percentage. 2. To convert a number to a percentage, multiply it by 100 and add the percentage symbol \%.

1. The problem is to understand factors and multiples, which are fundamental concepts in arithmetic. 2. A factor of a number is an integer that divides the number exactly without l

1. **Stating the problem:** We will explore factors and multiples, which are important concepts in math for class 4 students. 2. **Definition of factors:** A factor of a number is

1. **State the problem:** Calculate the result of subtracting 1170 from 1440. 2. **Formula used:** Subtraction of two numbers is given by $$a - b$$ where $a$ and $b$ are numbers.

1. **State the problem:** A truck starts with 98.502 pounds of sand and loses 28.293 pounds during the trip. We need to find how much sand remains when it arrives. 2. **Formula use

1. **State the problem:** Evelyn rode two trains, first for 137.13 miles and then for 51.1 miles. We need to find the total distance she rode. 2. **Formula used:** To find the tota

1. **State the problem:** A dump truck initially has 148.813 pounds of wood chips. It drops off 76.849 pounds at the playground. We need to find how many pounds of wood chips remai

1. **State the problem:** A chef bought 9.28 kilograms of almonds and 0.82 kilograms of pecans. We need to find the total kilograms of nuts bought. 2. **Formula used:** To find the

1. **State the problem:** A cheese maker starts with 644.7 ounces of cheddar cheese and sells 471.961 ounces. We need to find out how much cheese is left. 2. **Formula used:** To f

1. **State the problem:** We need to find how much more the green block weighs compared to the purple block. 2. **Identify the weights:** The green block weighs $0.11$ pounds and t

1. **State the problem:** Brody starts with 2.33 grams of pepper and uses 0.26 grams. We need to find how much pepper is left. 2. **Formula:** To find the remaining amount, subtrac

1. **State the problem:** Maya bought two watermelons weighing 2.036 pounds and 7.8 pounds respectively. We need to find the total weight of the watermelons. 2. **Formula used:** T

1. **State the problem:** Santiago wants to place his dresser and bed along the same wall. We need to find the total length of the wall required. 2. **Identify the given values:**

1. **State the problem:** A dairy farm produced 692.8 gallons of milk and used 338.9 gallons to make cheese. We need to find how much milk is left. 2. **Formula used:** To find the

1. **State the problem:** A chef bought 76.189 pounds of white rice and 93.818 pounds of brown rice. We need to find the total amount of rice bought. 2. **Formula used:** To find t

1. **State the problem:** A dump truck initially has 88.126 pounds of wood chips. It drops off 43.975 pounds at the playground. We need to find how many pounds of wood chips remain