CONCEPT
Ten thousandsThousandsHundredsTensOnes
21047

21 047 = 20 000 + 1 000 + 40 + 7. Zero holds the hundreds place.

Compare from the left. The first different place decides.

1Write each number in digits.
a
sixteen thousand and eight
b
thirty thousand and sixty
c
eight thousand four hundred and nine
d
twenty-two thousand five hundred and three
2Use place value.
a
Value of 4 in 24 106:
b
Value of 7 in 17 032:
c
Value of 6 in 16 405:
d
Value of 9 in 29 014:

Write 20 708 in words.

3Order and insert.

Order from smallest to largest: 20 070, 19 980, 20 700, 20 007, 21 000.

Insert 20 050 and 20 705. Write all seven in order.

4Check a claim.

“15 306 is smaller than 15 280 because 0 is smaller than 8.”

Is the claim correct? Explain the first place that is different.