Practicing Success
If '+' means '÷', '-' means '×', '×' means '+', '÷' means '-', then give the value for 45 + 9 - 3 × 15 ÷ 2 |
40 36 56 28 |
28 |
Replacing the proper signs in the given expression, we have 45+9-3×15÷2 = 45÷9×3+15-2 = 5×3+15-2 = 15+15-2 = 28 |