Powers of ten and scientific notation
Grade 7 Math Worksheet
Circle the best answer, or write your answer on the line.
The big city library has 10^6 books, and Luz is working through the mystery shelf. How many books are in the library?
A cartoon on TV was watched 10^8 times, and Noah saw it twice. How many times was it watched?
Bo rides a bike 8.4 × 10^2 m to school, with a bell the whole way. How many meters is that?
A shell from the beach is about 2.5 × 10^-2 m long, and Jun keeps it in a pocket. How many meters is that, written as a decimal?
A guitar string is about 7.2 × 10^-4 m thick, and Kira tunes it with a squeak. How many meters is that, written as a decimal?
A spacecraft traveled 640,000 km, and Milo cheered at the launch. How do you write 640,000 in scientific notation?
A region on Noah's map has 7,300,000 people. How do you write 7,300,000 in scientific notation?
Ren reads three distances in meters on a map. Which distance is the greatest?
- 8 × 10^4
- 1.5 × 10^6
- 9.9 × 10^5
Three towns count the bus rides taken last year, and Tala wants the busiest. Which number is the greatest?
- 7.1 × 10^5
- 9 × 10^4
- 3.2 × 10^5
Ari's science book lists three lengths in meters. Which length is the least?
- 2 × 10^-4
- 8 × 10^-5
- 6 × 10^-2