Short multiplication
You learn to multiply a big number by one digit in columns, carrying as you go.
How to work it out
- Start on the right: multiply each digit.
- If 10 or more, write the ones and carry the tens to add to the next column.
43
×6
258
43 × 6
- Ones: 6 × 3 = 18, write 8 and carry 1.
- Tens: 6 × 4 = 24, then add the 1 you carried: 24 + 1 = 25.
- The answer is 258.
More examples
124 × 6
- Ones: 6 × 4 = 24, write 4 and carry 2.
- Tens: 6 × 2 = 12, add the 2: 12 + 2 = 14, write 4 and carry 1.
- Hundreds: 6 × 1 = 6, add the 1: 6 + 1 = 7.
- The answer is 744.
124
×6
744
27 × 8
- Ones: 8 × 7 = 56, write 6 and carry 5.
- Tens: 8 × 2 = 16, then add the 5 you carried: 16 + 5 = 21.
- The answer is 216.
27
×8
216