# How to Evaluate Expressions with Multiplication and Division

Unless you’ve been using your free time to practice your Persian, Arabic, or Hebrew reading skills, you’re probably used to reading from left to right. Luckily, that’s the direction of choice for multiplication and division problems, too. When an expression has *only *multiplication and division, in any combination, you should have no trouble evaluating it: Just start with the first two numbers and continue from left to right.

## Sample questions

What is 15 / 5 x 8 / 6?

**4.**Start at the left with the first two numbers, 15 / 5 = 3:__15____/____5__x 8 / 6 =__3__x 8 / 6Continue with the next two numbers, 3 x 8 = 24:

__3____x____8__/ 6 =__24__/ 6Finish up with the last two numbers:

24 / 6 = 4

Evaluate –10 x 2 x –3 / –4.

**–15.**The same procedure applies when you have negative numbers (just make sure you use the correct rule for multiplying or dividing by negative numbers). Start at the left with the first two numbers, –10 x 2 = –20:__–10____x____2__x –3 / –4 =__–20__x –3 / –4Continue with the next two numbers, –20 x –3 = 60:

__–20____x____–3__/ –4 = 60 / –4Finish up with the last two numbers:

60 / –4 = –15

## Practice questions

Find 18 / 6 x 10 / 6.

Evaluate 20 / 4 x 8 / 5 / –2.

12 / –3 x –9 / 6 x –7 = ?

Solve –90 / 9 x –8 / –10 / 4 x 15.

Following are the answers to the practice questions:

18 / 6 x 10 / 6 = 5.

Divide and multiply from left to right:

18 / 6 x 10 / 6

= 3 x 10 / 6

= 30 / 6 = 5

20 / 4 x 8 / 5 / –2 =

**–**4.20 / 4 x 8 / 5 / –2

= 5 x 8 / 5 / –2

= 40 / 5 / –2

= 8 / –2 = –4

12 / –3 x –9 / 6 x –7 =

**–**42.12 / –3 x –9 / 6 x –7

= –4 x –9 / 6 x –7

= 36 / 6 x –7

= 6 x –7 = –42

–90 / 9 x –8 / –10 / 4 x –15 = 30.

–90 / 9 x –8 / –10 / 4 x –15

= –10 x –8 / –10 / 4 x –15

= 80 / –10 / 4 x –15

= –8 / 4 x –15

= –2 x –15

= 30