📘 arithmetic

1. **State the problem:** Calculate the value of the expression $-13 + 2$. 2. **Recall the rule:** Adding a positive number to a negative number means moving to the right on the nu

1. **Stating the problem:** A rope is $\frac{5}{6}$ metres long. Ravi used $\frac{3}{4}$ metres. We need to find how much rope he used.\n\n2. **Understanding the problem:** The que

1. **Write the decimals in words:** (a) 0.9 is written as "nine tenths" because the digit 9 is in the tenths place.

1. **State the problem:** We need to find the sum of the given list of numbers. 2. **List the numbers:** 385.46, 388.71, 255.69, 1725.12, 197.43, 169.48, 349.16, 882.50, 1238.51, 5

1. The problem is to add two numbers. 2. Addition is the process of combining two numbers to get their total or sum.

1. The problem is to find the sum of the given list of numbers: 315.08, 238.18, 370.43, 1715.91, 409.00, 202.68, 189.99, 189.99, 916.08, 430.20, 319.19, 679.20, 223.68, 322.83, 300

1. **State the problem:** The cost of food for a family increases from 41000 to 45000. We need to calculate the amount of money by which the cost has increased. 2. **Formula used:*

1. The problem is to add the mixed numbers $8 \frac{1}{2}$ and $3 \frac{5}{8}$.\n\n2. First, convert the mixed numbers to improper fractions.\n\nFor $8 \frac{1}{2}$: $$8 \times 2 +

1. **State the problem:** Add the mixed numbers $2 \frac{2}{3}$ and $3 \frac{1}{2}$.\n\n2. **Convert mixed numbers to improper fractions:**\n$2 \frac{2}{3} = \frac{2 \times 3 + 2}{

1. Problem: Compute $62^3$. 2. Formula: For any number $a$, $a^3 = a \times a \times a$.

1. **Stating the problem:** We need to round the number 873481 to the nearest ten, hundred, and hundred thousand. 2. **Rounding rules:**

1. **Problem:** Round the number 196725 to the nearest ten thousand. 2. **Formula and rule:** To round to the nearest ten thousand, look at the digit in the thousand's place (the d

1. The first problem asks for the place value of the underlined digit in the expression $3 - 416$. However, no digit is underlined in the expression provided, so we cannot determin

1. The problem is to understand the number 3 as given. 2. Since 3 is a single number without any operation, it is already in its simplest form.

1. Find the value of each of the following. (a) Calculate $-\frac{3}{7} + (-4)$.

1. **State the problem:** Calculate the value of $1 - 1$. 2. **Recall the subtraction rule:** Subtraction means taking away the second number from the first.

1. Let's create a quiz with problems where most answers equal 67. 2. Problem 1: Find $x$ if $x + 33 = 100$.

1. **State the problem:** Calculate the sum of the numbers 14 and 23. 2. **Formula used:** To find the sum of two numbers, use the addition formula:

1. **State the problem:** Calculate the value of the expression $15 + 4 \times 5$. 2. **Recall the order of operations:** According to the order of operations (PEMDAS/BODMAS), mult

1. The problem asks to find \textit{one quarter} of 80 marbles. 2. The phrase "one quarter" means \frac{1}{4} of a quantity.

1. **State the problem:** Calculate the sum of 39 and 16. 2. **Formula used:** Addition of two numbers is given by $a + b$.