Goal: In the Arithmetic lesson, we learned:

• How to access the JavaScript Console
• Addition, subtraction, multiplication, and division using JavaScript
• How to use the % operator
• NaN means not a number but is actually considered a type of number

Begin getting comfortable with these concepts by completing the practice exercises listed below. Soon enough, they'll be second nature!

Warm Up

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Make sure you understand the following before moving on:

• What is the % operator? How is the action it performs different than simply dividing?
• How can we access the JavaScript console?
• When might we see NaN?

Code

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Complete the following exercises to practice arithmetic in JavaScript:

Add:

• 77 to 99
• 34 to 1233
• -53 to 99
• 9,092 to -12312
• 943,456,575 to 39,087,092,348,570

Subtract:

• 99 from 665
• 555 from 23
• 7,912 from 88888
• 6,348,709,234 from 87,023,984,709,871,234.

Multiply:

• 89 and 54
• 932 and 1,900
• -34 and 8
• 25 and 700

Divide:

• 1008 by 7
• 23423 by 75
• 90 by 3
• 9,870,834,205,987 by 324
• A number by 0.
• 0 by 0.

Find the remainder of dividing the following numbers:

• 1008 by 7
• 23423 by 75
• 90 by 3
• 9,870,834,205,987 by 324