Write each number in standard form.
7,000 + 200 + 10 + 7 =
4,000 + 90 + 5 =
100 + 70 + 1 =
Write each number in standard form.
2,000 + 600 + 50 =
8,000 + 100 + 2 =
3,000 + 200 + 10 + 6 =
Complete the list of multiples.
3 6 9 12
4 8 12
5 10 15