add 10
subtract 10
add 20
subtract 20
add 30
100

what is 50 plus 10

60

100

60 minus 10

50

100

400 plus 20

420

100

100 minus 20

80

100

600 plus 30

630

200

20 plus 10

30

200

20 minus 10

10

200

550 plus 5

555

200

200 minus 20

180

200

700 plus 40

740

300

30 plus 10

40

300

60 minus 40

20

300

440 plus 20

460

300

300 minus 20

280

300

800 plus 40

840

400

500 plus 10

510

400

50 minus 40

10

400

400 plus 20

420

400

400 minus 20

380

400

900 plus 40

940

500

jaden has 50 apples he gets some more now he has 100 haw many tens did he get

150

500

100 minus 300

you can not do that

500

sarai has 500 apples he gets 500 more how many does he have more

1,000

500

if u have 50 pennies u give 30 to your mom how many do u have now

20

500

you get 1,000 dollars from your cousins you spend 900 how many do u have now

100