X. Break-Apart Facts
Kevin said, “To multiply 6 × 7, I break apart 7 into 5 + 2. Then I multiply 6 × 5 = 30 and
6 × 2 = 12 and add 30 + 12 = 42.”
Use Kevin's method to multiply:
- 6 × 8
- 8 × 7
- 4 × 8
Kevin said, “To multiply 6 × 7, I break apart 7 into 5 + 2. Then I multiply 6 × 5 = 30 and
6 × 2 = 12 and add 30 + 12 = 42.”
Use Kevin's method to multiply: