standard form

Front

When is a number written in standard form?

Back

When a number between 1 and 9.9 is multiplied by a power of 10.

Front

Write 650,000,000 in standard form.

Back

6.5 ✕ 10⁸

Front

What’s the shortest way? Options: 200 hm, 500 dam, 3 km, 600 hm

Back

3 km

Front

Express 0.000056 in standard form

Back

5,6 x 10^-5

Front

5.68 x 10⁸ = ?

Back

568 000 000

Front

Planet Earth is 150 million kilometers from the sun. This number in standard form is ...

Back

1,5 × 10⁸ km

Front

The mass of an electron is approximately 0,000 000 000 000 000 000 000 000 910 938 22 kg. In standard form and rounded to three significant figures is written:
Options: 9,10 × 10^-31 kg, 9,11 × 10³¹ kg, 9,11 × 10^-31 kg, 9,109 × 10^-31 kg

Back

9,11 × 10^-31 kg

Front

The size of a red globle is about 7,5×10⁻⁷ mm. Which of the following numbers equals? 0,000 000 75, 0,000 000 007 5, 75000000, 75000000000

Back

0,000 000 75

Front

0.00000005 in standard form is = ?

Back

5x10^-8 mm

Front

When multiplying a number by a power of 10, the decimal point moves...

Back

To the right if the exponent is positive and to the left if the exponent is negative.