Positive numbers, negative numbers, absolute fun! On page 1, up the radio towers you go to fill in the blanks. Look at the four pairs of numbers, which one is bigger? On page 2, Carlos went diving yesterday and had a close encounter with an electric eel! Draw a number line to reflect his dive. Carlos went diving again, this time with Frida and Miguel. Fill in the blanks along the number line and write the absolute values as instructed. Given how much he enjoys diving, Carlos decided to open his own dive shop. There were a lot of expenses to cover; luckily, his aunt lent him some money. Help him fill in the bank statement.

Number lines help understand positive and negative numbers because they show you where each number belongs in relation to zero. Imagine a line that stretches out in both directions, with zero in the middle. All the numbers to the right of zero are positive, like +1, +2, and +3, and all the numbers to the left of zero are negative, like -1, -2, and -3. By looking at the number line, you can easily see which numbers are bigger or smaller and how far apart they are.