Solve the following arithmetic problems, showing each step.

Question

ScanSolve AI Tutor · Accepted Answer

Here are the solutions for the problems:

1.

Perform the multiplication.
$2 \times 1 = 2$
Perform the addition.
$2 + 3 = 5$
The answer is $\boxed{5}$ .

2.
Perform the multiplication.
$2 \times (-1) = -2$
Perform the addition.
$-2 + 3 = 1$
The answer is $\boxed{1}$ .

3.
Perform the multiplication.
$0.2 \times 1 = 0.2$
Perform the subtraction.
$0.2 - 3 = -2.8$
The answer is $\boxed*{-2.8*}$ .

4.
Perform the multiplication.
$4.5 \times 1 = 4.5$
Perform the addition.
$4.5 + 3 = 7.5$
The answer is $\boxed*{7.5*}$ .

5.
Perform the multiplication.
$-\frac{1}{2} \times 1 = -\frac{1}{2}$
Perform the subtraction.
$-\frac{1}{2} - 3 = -\frac{1}{2} - \frac{6}{2} = -\frac{7}{2}$
The answer is $\boxed*{-\frac{7}{2} \text{ or } -3.5*}$ .

6.
Perform the multiplication.
$2 \times 1 = 2$
Perform the addition.
$2 + 0.5 = 2.5$
The answer is $\boxed*{2.5*}$ .

7.
Perform the multiplication.
$2 \times \frac{3}{2} = 3$
Perform the addition.
$3 + 3 = 6$
The answer is $\boxed*{6*}$ .

8.
Perform the multiplication.
$2 \times \frac{5}{2} = 5$
Perform the addition.
$5 + 8 = 13$
The answer is $\boxed*{13*}$ .

9.
Simplify the fraction and perform the multiplication.
$-\frac{3}{6} \times 1 = -\frac{1}{2} \times 1 = -\frac{1}{2}$
Perform the subtraction.
$-\frac{1}{2} - 3 = -\frac{1}{2} - \frac{6}{2} = -\frac{7}{2}$
The answer is $\boxed*{-\frac{7}{2} \text{ or } -3.5*}$ .

10.
Perform the multiplication.
$2 \times 100 = 200$
Perform the addition.
$200 + 3 = 203$
The answer is $\boxed*{203*}$ .

That's 2 down.

Step-by-step solution