What are the next three terms of the following sequence?-10, 20, -40, 80,___,___,___

Question

anonymous · Answer

+30,-60,+120, so the next is going to be -240 then +480 then -960

anonymous · Answer

the value is doubled and signs are changed silultaniously
see 10x2 =20 and 20 x2 = 40 with minus sign
so next terms will become -160,320,-640

anonymous · Answer

@sjerman1 sure? o.o

anonymous · Answer

thank you

anonymous · Answer

well this is the addion and subtraction that you will have to do, i was not talking about the actual numbers in the sequences only the difference between them. @aajugdar

anonymous · Answer

@aajugdar i disagree with your answer @christinewilliams you should check your answer

anonymous · Answer

well yeah,i guess you are right there :)

anonymous · Answer

sorry ^

anonymous · Answer

the next three answers should be -160,320,-640

anonymous · Answer

hahah nevermind. you did it a different way but same answer. good job

anonymous · Answer

well :D thanks

anonymous · Answer

ill double check my answers to yours next time before jumping to conclusions!

anonymous · Answer

haha,you are way better in maths than mine :)

anonymous · Answer

me***

anonymous · Answer

no you did good.