Scientific Notation Word Problems 8th Grade Math Worksheet (Page 2 of 2) in pdf

Scientific Notation Word Problems 8th Grade Math Worksheet Page 2

7. S tudents a t S alt L ake C ommunity C ollege p ay 1 .585 ×10

d ollars f or t uition. S tudents a t G eorge

Washington U niversity p ay 4 .573 ×10

d ollars. H ow m any t imes g reater i s t he t uition a t G eorge

Washington?

8. T he p opulation o f t he U nited S tate i s 3 ×10

a nd t he p opulation o f t he w orld i s 7 ×10

. H ow m any

times l arger i s t he p opulation o f t he w orld t han t he U .S.?

Geographers k eep t rack o f h ow m any p eople l ive i n d ifferent a reas o f t he w orld. T hey a re

especially i nterested i n h ow t he p opulations o f c ertain a rea c hange. T he t able b elow s hows

the p opulation o f d ifferent r egions i n 1 985 a nd i n 2 005.

Population

Place

1985

2005

Earth

4.9 ×10

6.4 ×10

China

1.1 ×10

1.3 ×10

India

7.6 ×10

1.1 ×10

United S tates

2.4 ×10

3.0 ×10

9. I n 2 005, h ow m any t imes g reater t han C hina’s p opulation i s t he p opulation o f t he w orld?

10. H ow m any m ore p eople i nhabited E arth i n 2 005 t han i n 1 985?

The w ord m illion c ame f rom I talian m erchant M arco P olo, w hen d uring t he 1 4

c entury o n

one o f h is t rips t o C hina h e s aid t hat h e s aw m ill-‐one p eople t here ( many t housand). S ince

then i t i s u sed i n a lmost t he s ame f orm i n m any o ther l anguages.

11. W rite o ne m illion i n s tandard f orm a nd s cientific n otation.

12. H ow l ong w as a m illion d ays a go i n h ours?

13. H ow f ar i s a m illion i nches i n m iles? ( There a re 5 280 f eet i n 1 m ile.)

Bonus: M cDonald’s h as s old m ore t han a b illion h amburgers. I f i t w ere p ossible t o e at a h amburger

every m inute o f e very d ay ( day a nd n ight) w ithout s topping, h ow m any y ears w ould i t t ake t o e at a

billion h amburgers?

Scientific Notation Word Problems 8th Grade Math Worksheet Page 2