Maths - standard form

Standard Form

calculate and give your answer in standard form:(2.05 x 10'5) x (8.17 x 10'3)

1.67485 x 10'9

write in standard form: 35000

3.5 x 10'4

write as ordinary: 1.2 x 10'3

1200

write in standard form: 8200000

8.2 x 10'6

write as ordinary: 4.7 x 10'-2

0.047

choose the number in standard form:

5.55 + 10'8

36 x 10'-5

0.3 x 10'5

6.5 x 10'8

6.5 x 10'8

write in standard form: 40000

4 x 10'4

write in standard form: 5600

5.6 x 10'3

write in standard form: 41200000

4.12 x 10'7

write in standard form: 0.00000008

8 x 10'-8

write in standard form: 0.000345

3.45 x 10'-4

write in standard form: 37341000000

3.7341 x 10'10

Nadal is asked to write the number 48100000 in standard form. He writes: 481 x 10'5. Explain why he is incorrect.

He is incorrect because for it to be in standard form the number being multiplied by a power of 10 must be 10 > n > 1, so 481 wouldn't be in standard form because it is above 10

Amelia is asked to write the number 0.0054 in standard form. She writes 5.4 x 10'4. Explain why she is incorrect.

She is incorrect because the power should be negative

















# will have a negative power.

write 1.52 x 10'6 as an ordinary number

1520000

write 9.8 x 10'-5 as an ordinary number

0.000098

write 0.000000000000412 in standard form

4.12 x 10'-13

write 375 x 10'7 in standard form

3.75 x 10'9

write 0.68 x 10'12 in standard form

6.8 x 10'11

write 92 x 10'-8 in standard form

9.2 x 10'-7

order these numbers from smallest to largest:

2.04 x 10'3

250

0.3 x 10'3

4 x 10'-2

4 x 10-2, 250, 0.3 x 10'3, 2.04 x 10'3

calculate and give your answer in standard form:(4 x 10'5) x (2 x 10'4)

8 x 10'9

calculate and give your answer in standard form:(3 x 10'4) x (6 x 10'-3)

5 x 10'6

calculate and give your answer in standard form:(2.1 x 10'-5) x (7 x 10'4)

3 x 10'-2

calculate and give your answer in standard form:(5 x 10'4)'2

2.5 x 10'9

write 0.0083 in standard form

8.3 x 10'-3

Mr holland has 2500kg of rice. Write 2500kg as grams in standard form.

Each grain is 0.03g. Write the mass of one grain in standard form.

2.5 x 10'6

3 × 10’-2

Write 5 million in standard form

5 x 10'6

Write three-hundred-thousand in standard form.

3 x 10'5