Big Whoop Wanna Solve It

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Across
  1. 1. (1x100)+(2x10)+(3x1)=
  2. 4. (400+50+1)-(10+2)=
  3. 6. 5+3+1+10+2
  4. 8. nine hundred + one hundred two=
  5. 9. 100,000+20,000+3,000+400+50+6
  6. 11. three thousand nine hundred six
  7. 12. (8x100)+(7x10)+(4x1)=
  8. 13. 864+945=
  9. 14. 696+969=
  10. 15. ten + ten + ten + ten + ten + ten=
Down
  1. 2. 31267-4325
  2. 3. (7x100)+(4x10)+(1x1)
  3. 5. 32964+978453
  4. 6. 2345569 round to the greatest place value
  5. 7. six hundred sixty-two
  6. 8. 789+789=
  7. 10. Forty- two
  8. 13. 1000+500+60+6=