CurrentGK

Multiplying a 2-digit number by 5 1/6

1. Select a 2-digit number.
2. Multiply by 3.
3. Add a zero.
4. Add the original number.
5. Divide the result by 6.

1. The 2-digit number chosen to multiply by 5 1/6 is 24.
2. Multiply by 3: 3 × 24 = 72
3. Add a zero: 720
4. Add the original number: 720 + 24 = 744
5. Divide by 6: 744/6 = 124
6. So 24 × 5 1/6 = 124.

   See the pattern?

1. The 2-digit number chosen to multiply by 5 1/6 is 41.
2. Multiply by 3: 3 × 41 = 123
3. Add a zero: 1230
4. Add the original number: 1230 + 41 = 1271
5. Divide by 6: 1271/6 = 211 5/6
6. So 41 × 5 1/6 = 211 5/6.