What is 60 * 70?
What is 60 * 70?
Approach: 6 * 7 and add two zeros.
4200. 42 + 00 = 4200.
Follow-up: What is 600 * 70?
Key concepts: multiplication of multiples of 10.
What is 60 * 70?
Approach: 6 * 7 and add two zeros.
4200. 42 + 00 = 4200.
Follow-up: What is 600 * 70?
Key concepts: multiplication of multiples of 10.