Hey there!
Guide #1
• 2 negatives = positive
• 2 positives = positive
• 1 negative & 1 positive = negative
• 1 positive & 1 negative = negative
Guide #2
• Negatives are BELOW 0
• Positives are ABOVE 0
Guide #3
• Positives are on the RIGHT side of 0 (and on the number line)
• Negatives are on the LEFT side of 0 (and on the number line)
Guide #4
• When dealing with negatives you go down
• When dealing with positives you go up
ANSWERING YOUR QUESTION
4 - (-19)
= 4 + 19
• You start with 19 (because it is the bigger number in this case) and go up 4 spaces to your right
= 23
Therefore, your answer should be: 23
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)