Number
Plus
Minus
Plus & Minus
Challenge
100

10,000

ten thousand

100

50+50=?

100

100

600-300=?

300

100

300+200-100=?

400

100

1000+100=?

1,100

200

1,000,000

one million

200

1000+2000=?

3,000

200

4000-3000=?

1,000

200

5000+4000-2000=?

7,000

200

20000+3000=?

23,000

300

100,000,000

one hundred million

300

40000+30000=?

70,000

300

90000-50000=?

40,000

300

70000+10000-20000=?

60,000

300

400000+50000+2000=?

452,000

400

1,000,000,000

one billion

400

6000000+3000000=?

9,000,000

400

7000000-2000000=?

5,000,000

400

800000+200000-500000=?

500,000

400

6000000+400000+90000=?

6,490,000

500

1,000,000,000,000

one trillion

500

5000000000+5000000000=?

10,000,000,000

500

5000000000-2000000000=?

3,000,000,000

500

4000000+4000000-2000000=?

6,000,000

500

7000000+200000+10000+4000+800+30+9=?

7,214,839

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