math that is good

/ by fractions

100

what is 1/5 / 10

1/50

200

30 / 1/8

240

300

what is 1/4 / 8?

1/32

400

what is 9 / 1/3?

27

500

what is 1/3 / 13?

1/39

powers of 10

100

what is 5 x 10⁵

5,000,000

200

what is 4.2 x 10²

420

300

what is 6 x 10^4?

60,000

400

what is 7 x 10⁷

70,000,000

500

what is 8 x 10¹

80

volume

100

10 in x 10 in x 10 in

1000

200

what is 5 _in x 20 _in x 3 _in?

300

300

what is 7 _in x 8 _in x 12 _in?

672

400

what is 8 x 13 x 4?

416

500

what is 15 x 5 x 6?

450