# 7th grade math standard form scientific notation

posted by Delilah

In standard form:

5. 3.2 x 10^3

7. 4.1 x 10^8

9. Write the average weight of a blue whale, 2.6 x 10^5, in standard form.

15. 2.5 x 10^-3

17. 1.05 x 10^-2

19. Write the size of a grain of very fine sand, about 9.35 x 10^-3 cm, in standard form.

Can somebody help? I have been stuck on these questions for 30 minutes....
Thanks.

1. Reiny

I don't understand what you mean by "I have been stuck on these questions for 30 minutes.... "
Are you just staring at the questions?
The concept of scientific notation can be learned in less than 5 minutes.

5. 3.2 x 10^3
= 5.3 x 1000
= 5300

15 . 2.5 x 10^-3
= 2.5 x .001
= 0.0025

You try the others.

2. misty

what operation is being performed 1.2x10^2+2.5x10^4=

3. Anonymous

5.7 * 10^6

## Similar Questions

1. ### Alg.1 standard form

write an equation in standard form of the line containing (-1,1) and (6,-1) (-1,1) (6, -1) --------- (7,-2) -----> m= -2/7 and then u plug it in the point slope form?

write 31 hundred thousands in standard form and 23 ten thosands in standard form
3. ### scientific notations

Explain how to convert seven point one three times ten to the eleventh from scientific notation to standard form, then give the answer in standard form.

1. The area of Greenland is 840,000 square miles. What is this number in scientific notation?
5. ### 7th grade math - Scientific Notation basics

1. The area of Greenland is 840,000 square miles. What is this number in scientific notation?
6. ### 7th grade math questions Scientific Notation

19. Write the size of a grain of very fine sand, about 9.35 x 10^-2 cm, in standard form. 31. The population of the US is expected to be 392 million people by 2050. Write this answer in scientific notation. 37. Write 10^29 - 10^28 …
7. ### Math

Please help with the following questions: 1. write 12 million in scientific notation 2. Write 17,600 in scientific notation 3. write 1.2 * 10 to the fourth power in standard form 4. write 5 * 10 to the sixth power in standard form
8. ### math

1. the speed of light is 8.0x^8m/s in standard form that is?
9. ### math

turn standard form into scientific notation: 1. 12457.686 m 2. 0.000065423 g 3. 128.90 g 4. 0.0000007532 m turn scientific notation back to standard form: 1. 1.37 x 10^4m 2. 2.875 x 10^2g 3. 8.755 x 10^-5g 4. 7.005 x 10^-3m
10. ### Math

1. Factor Form : 1x1x1x1 Exponent Form : 1^4 Standard Form : 1 2. Factor Form :2x2x2 Exponent Form : 2^3 Standard : 8 3.Factor Form : (-6)(-6)(-6) Exponent Form : (-6)^3 Standard : -216 4.Factor Form : 5x5x5 Exponent form : 5^3 Standard …

More Similar Questions