Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
21 * 3 * 36 * 2 * 23 = 68
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. ×, −, ÷, +.
Given equation: 21 * 3 * 36 * 2 * 23 = 68
Let us check all the options:
Option 1: ×, −, ÷, +
The expression becomes:
= 21 × 3 − 36 ÷ 2 + 23 = 68
= 21 × 3 − 18 + 23
= 63 − 18 + 23
= 68 is equal to 68.
As we have found our answer, so, there is no need to check further options.
Hence, option 1 is the correct answer.