After interchanging the given two signs, what will be the value of the given equation?
× and −
21 × 6 − 15 ÷ 3 + 18 = ?
Show answer & explanation
Correct answer: C
Explanation
21×6−15÷3+18
× → −
− → ×
Interchanging the signs
21−6×15÷3+18=?
21−6×5+18=?
21−30+18=?
? = 9