InRuiter
InRuiter
03-09-2015
Mathematics
contestada
Subtract. 3 – (–18)
a. –21
b. –15
c. 15
d. 21
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BritB123
BritB123
03-09-2015
I learned to do KCC (Keep Change Change)
Keep 3 change the sign, and change the 18 to positive.
3+18
Answer: d= 21
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