Identify the mystery number.

My Ones place is 2 less than 10. My Tens place is the sum of 3 and 3. What number am I?

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Solution

Say: Let’s find out what the mystery number is.

Steps:
\(\bullet\) The number in the Ones place is 2 less than 10.
\(\bullet\) 2 less than 10, i.e., 10 – 2 = 8. So, the number in the Ones place is 8.
\(\bullet\) The number in the Tens place is the sum of 3 and 3, i.e., 3 + 3 = 6.
\(\bullet\) So, the number in the Tens place is 6.
\(\bullet\) The abacus given in Option D has 6 beads over “T” representing 6 Tens and 8 beads over “O” representing 8 Ones.
\(\bullet\) 6 Tens and 8 Ones = 68.
\(\bullet\) So, the mystery number is 68.
\(\bullet\)Hence, Option D is correct.

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Identify the mystery number. My Ones place is 2 less than 10. My Tens place is the sum of 3 and 3. What number am I?

Identify the mystery number.

My Ones place is 2 less than 10. My Tens place is the sum of 3 and 3. What number am I?