L. Multiples of Ten 
Study the example before you complete Questions 1 and 2.
- 30 × 5 = 5 × 30
5 × 30 = 5 × 3 tens
5 × 3 tens = 15 tens
15 tens = 150
- 20 × 3 = _____ × 20
3 × 20 = 3 × _____ tens
3 × 2 tens = _____ tens
6 tens = _____ - 90 × 2 = _____ × 90
2 × 90 = 2 × _____ tens
2 × 9 tens = _____ tens
18 tens = _____ - 70 × 5 = _____ × 70
5 × 70 = 5 × _____ tens
5 × 7 tens = _____ tens
35 tens = _____ - 40 × _____ = 9 × 40
9 × 40 = 9 × _____ tens
9 × 4 tens = _____ tens
36 tens = _____ - Be ready to explain how you used multiples of ten to multiply.