Calculation of Unit Digit

Calculation of Unit Digit

Can you find the unit digit of the product 227 × 679 × 763 × 899 in less than 20 seconds. Watch this video and learn the short trick. The trick discussed here is useful for CAT, Bank P O, GMAT, Math Olympiad and other entrance exams. Session by Alka Maheshwari

Find the unit’s digit of the expression 111 + 122 + 133 + 144 + 155 + 166.

1. 1 2. 9 3. 7 4. 0

Find the unit’s digit of the expression 111 × 122 × 133 × 144 × 155 × 166?

1. 1 2. 9 3. 7 4. 0

Find the unit’s digit of the expression : 55725 + 735810 + 22853.

1. 4 2. 0 3. 2 4. 6

Find the units digit of:

11^11!+1 + 12^12!+2 + 13^13!+3 + 14^14!+4 + ... + 19^19!+9

1. 0 2. 8 3. 7 4. 6

In the number 160⁴³²⁰, after how many digits from the right will you encounter the first odd digit ?

1. 4320 2. 4321 3. 4322 4. 4323