Answer:
17. D -21
18. A -80
19. D +324
20. C -9
Step-by-step explanation:
Rules
adding 2 postive number answe is postive
adding 1 postive and 1 negative number is like subtracting and just copy the big sign number
subracting negative number is like adding the two numbers and sign is negative
mulplying 2 postive is equal to positive
mutiplying 1 postive and 1 negative is negative
mutiplying 2 negative is postive
it same on division
Sana Makatulong
Goodluck
paTama pag Mali
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
17. D -21
18. A -80
19. D +324
20. C -9
Step-by-step explanation:
Rules
adding 2 postive number answe is postive
adding 1 postive and 1 negative number is like subtracting and just copy the big sign number
subracting negative number is like adding the two numbers and sign is negative
mulplying 2 postive is equal to positive
mutiplying 1 postive and 1 negative is negative
mutiplying 2 negative is postive
it same on division
Sana Makatulong
Goodluck
paTama pag Mali