Mathematics

Multiplying

100

9 x 12= ?

108

200

13 x 1/2= ?

6 1/2

300

21 x 1/3

1/7

400

210 x 1/70

1/3

500

1420 x 1/2

710

Equivalent fractions

100

99/100 =?

Simplest form (in percent)

99%

200

6/8 =? 

Simplest form

3/4

300

200/300 =?

Simplest form

2/3

400

20/100 =?

Simplest form

1/5

500

100/1000 =?

Simplest form

1/10

Subtraction

100

2390 - 2240 =?

2150

200

2960 - 1960=?

1000

300

199000 - 190000=?

9000

400

2465000 - 1645000=?

820000

500

123456789 - 122256789

1200000

Addition

100

2460 + 2640=?

5100

200

5100 + 30000

35100

300

12345 + 6789=? 

19134

400

1012 + 360=?

1372

500

2160 + 100293=?

102453

Percents

100

.53 = ?%

53%

200

1234.56 = ?%

123456%

300

1234567.89 =?

12356789%

400

1399029894289.84 = ?

139902989428984%

500

234.60 =?

23460%