Place value crossword

123456
Across
  1. 3. seven groups of ten
  2. 5. the digit in the ten thousands place in the number 842,793
  3. 6. the digit in the hundred thousands place in the number 814,682
Down
  1. 1. this digit is used to hold an empty place in a number
  2. 2. the name for 0,1,2,3,4,5,6,7,8,9/another name for numbers
  3. 4. the digit in the units place in the number 742,793