What’s More
Here are some items for you to practice on. Using your positive and negative counters,
illustrate the indicated operations. Write your answers with correct sign on your answer
sheet.
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What’s More
Here are some items for you to practice on. Using your positive and negative counters,
illustrate the indicated operations. Write your answers with correct sign on your answer
sheet.
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Answer:
1. -13 - 15= -28
2. 17-9= 8
3. -9+5= -4
Step-by-step explanation:
(+)(-) = negative(-), it is negative if the signs are different
(-) (-) or (+)(+) = positive(+), it is positive if the both sign are the same
OPERATION:
addition = same sign
subtraction =different sign
1. -13 +(-15)= -13 - 15
= -28, addition since both of them are negative sign. Copy the sign if both are the same [example: a.) -13-14= - 27 b.) 13+14=27
2. 17+(-9)= 17-9
= 8, subtraction
3. -9-(-5) = -9+5
= - 4, subtraction