Page 5 - Multiplication of 2 digit by 1 digit number(Without regrouping)
P. 5
Example: 21 × 3
● Let's try 21 × 3 together:
● 1. Multiply 1 × 3 = 3 (ones digit)
● 2. Write 3 in the ones place
● 3. Multiply 2 × 3 = 6 (tens digit)
● 4. Write 6 in the tens place
● 5. Our answer is 63!
● Can you explain why we didn't need to regroup here?
