📘 arithmetic

1. **State the problem:** Calculate the sum of $-12$ and $-7$. 2. **Formula and rules:** When adding two negative numbers, add their absolute values and keep the negative sign.

1. **State the problem:** Kylie has 30 oatmeal cookies and 48 chocolate chip cookies. She wants to divide them into identical containers so that each container has the same number

1. **State the problem:** Divide 2860 by 3 using long division. 2. **Recall the division formula:** Dividend = Divisor \times Quotient + Remainder.

1. The problem is to divide 785 by 9 using long division. 2. The formula for division is: $$\text{Dividend} = (\text{Divisor} \times \text{Quotient}) + \text{Remainder}$$

1. Problem statement: Compute the area $A$ given $A = 3.75 \times 8$. 2. Strategy: Convert the decimal to a fraction to make multiplication easier and avoid decimal errors.

1. **State the problem:** We need to find the result of subtracting 50 from 97. 2. **Recall the subtraction operation:** Subtraction means taking away a number from another number.

1. **Problem:** Joe buys a pasting table, 2 paste brushes, and a craft knife on day one. We need to find the total cost. 2. **Given:** Estimate is 34.39 euros.

1. The problem is to perform multiple operations without converting numbers into fractions or other forms. 2. When multiplying numbers, multiply the numerators together and the den

1. The problem is to multiply 3580 by 0.26. 2. The formula for multiplication is:

1. Let's start with a fractions problem: Suppose you want to add $\frac{3}{4}$ and $\frac{2}{5}$.\n\n2. The formula for adding fractions is to find a common denominator and then ad

1. State the problem: Compute $1914 + 2 - 284.97$. 2. Rule: For addition and subtraction evaluate from left to right, so $a + b - c = (a + b) - c$.

1. **State the problem:** We need to find the sum of the following numbers: $$438.93, 351.14, 657.37, 526.71, 1053.42, 982.82, 175.57, 263.36, 219.46, 87.89, 131.68$$

1. **State the problem:** Evaluate the expression $60 + 10 \times 0 + 6 + 2$. 2. **Recall the order of operations:** Multiplication is performed before addition.

1. **State the problem:** Subtract the mixed numbers $28 \frac{2}{4}$ and $5 \frac{2}{3}$ and reduce the result to simplest form. 2. **Convert mixed numbers to improper fractions:*

1. **State the problem:** Melissa rented 1 video game and 6 DVDs. The video game rental price is $3.40 and each DVD rental price is $4.80. We need to find the total amount Melissa

1. The problem is to understand the process and effect of multiplying a number or expression by 36. 2. Multiplying by 36 means you are adding the number to itself 36 times. For exa

1. **State the problem:** Divide 1.640 by 8 using the column (long division) method. 2. **Set up the division:** Write 1.640 as the dividend inside the division bracket and 8 as th

1. **State the problem:** Calculate the value of the expression $4 - (-2)$. 2. **Recall the rule:** Subtracting a negative number is equivalent to adding its positive counterpart.

1. **State the problem:** Pedro's puppy weighed $6 \frac{1}{8}$ pounds on the first visit and $9 \frac{1}{16}$ pounds on the second visit. We need to find how much weight the puppy

1. **Stating the problem:** We have three decks of cards with 30, 75, and 42 cards respectively. We want to find which of these decks can be evenly distributed among 2, 3, 5, or 10

1. **Problem:** Identify which division problem the model Tess made represents. 2. **Step 1:** Understand the division model. The model shows a number divided into 3 equal parts.