Answer:
Should be C
Step-by-step explanation:
Only the same power number can be use to add or subtract :)
But why is A, B and C same kinda stuff?
4 significant figures.
we can start counting the numbers after all the zeros in front. the zeros in front doesn't count in. but the zeros after the first number that is 1 or larger counts.
therefore we only need to look at 3010
MrBillDoesMath!
Answer:
720,080 = 700,000 + 20,000 + 80 =
7 * 100000 + 2 * 10000 + 0 * 1000 + 0*100 + 8*10 + 0*1 =
7 * 10^5 + 2 * 10^4 + 0 * 10^3 + 0* 10^2 + 8 * 10
MrB
A is 69000 I hope you do good on your test/homework