multiplying and dividing integers

negative x negative

100

-18 x -3

54

200

-21 x -21

441

300

-111111 x -222222

2.469130864

400

-999 x -99999

99899001

500

-987654321 x -123456789

1.219326311

negative x positive

100

-15 x 15

-225

200

-40 x 17

-680

300

-63 x 47

-2961

400

-9999999999 x 9999999999

-9.999999998

500

-1398491643 x 1398491643

1.955778876

dividing integers

100

-15 ÷ -700000

0.000021429

200

-16/-4

4

300

-10/-5

2

400

-24/-8

3

500

-996/-17/9

6.509803922