Sheet # 17 Critical Thinking

Name: _____________________ Date_____________

Ten numerals appears on television remote control: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0. Find all the 2-digit combinations. Write a number sentence.

**Answer for sheet # 17
**

01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, ..................................99

You will make 99 two digit numbers.

Number sentence: (n + 1) x (n-1)

n = number of digits.

In this problem, number of digits are 10, so number of two digit numbers are (10+1) x (10-1) = 11 x 9 = 99