Practice Mathematical Operations Practice Questions with Detailed Solutions – Level 1

If '+' means '×', '×' means '−', '−' means '÷' and '÷' means '+', what is the value of the following expression?

18 − 3 + 4 ÷ 6 × 5

If P means '+', Q means '−', R means '×' and S means '÷', what is the value of the following expression?

36 S 4 P 7 R 3 Q 10

Which two signs should be interchanged to make the following equation correct?

\(12 + 6 \div 3 - 4 \times 2 = 22\)

If the signs '+' and '−' are interchanged and the numbers 4 and 8 are interchanged, which of the following equations becomes correct?

Which sequence of signs, filled in the blanks in order, will balance the following equation?

15 _ 3 _ 4 _ 8 = 12

If '×' means '+', '+' means '÷', '÷' means '−' and '−' means '×', what is the value of the following expression?

40 + 8 × 6 − 3 ÷ 9

Which two numbers should be interchanged to make the following equation correct?

\(6 \times 4 - 12 \div 3 + 2 = 17\)

If '@' means '+', '#' means '×', '&' means '−' and '%' means '÷', what is the value of the following expression?

7 # 6 & 24 % 8 @ 5

If L stands for '÷', M for '×', N for '+' and O for '−', what is the value of the following expression?

64 L 8 M 5 O 12 N 6

If the signs '×' and '÷' are interchanged, which of the following equations becomes correct?