We are given six arithmetic problems to solve: 1. $3^2 + 13 = ?$

1. Problem Description

We are given six arithmetic problems to solve:

1. $3^2 + 13 = ?$

2. $50,000 - 800 = ?$

3. $32.8 \times 1000 = ?$

4. $6,642 + 7,947 = ?$

5. $13 - 8.05 = ?$

6. $69 \times 2 = ?$

2. Solution Steps

1. $3^2 + 13 = ?$

$3^2 = 3 \times 3 = 9$

$9 + 13 = 22$

2. $50,000 - 800 = ?$

$50,000 - 800 = 49,200$

3. $32.8 \times 1000 = ?$

When multiplying by 1000, we move the decimal point 3 places to the right.

$32.8 \times 1000 = 32800$

4. $6,642 + 7,947 = ?$

$6,642 + 7,947 = 14,589$

5. $13 - 8.05 = ?$

We can write 13 as 13.

0

0. $13.00 - 8.05 = 4.95$

6. $69 \times 2 = ?$

$69 \times 2 = 138$

3. Final Answer

1. $3^2 + 13 = 22$

2. $50,000 - 800 = 49,200$

3. $32.8 \times 1000 = 32,800$

4. $6,642 + 7,947 = 14,589$

5. $13 - 8.05 = 4.95$

6. $69 \times 2 = 138$