Question : Directions: Which of the following pairs of numbers and signs, when their positions are interchanged, will correctly solve the given mathematical equation?
17 × 15 + 3 – 11 ÷ 3 = 45

Option 1: 15 and 11, – and ×

Option 2: 15 and 11, + and ×

Option 3: 17 and 3, – and ÷

Option 4: 15 and 11, + and –

Question : Directions: Which two mathematical signs should be interchanged to make the given equation correct? (45 × 2) ÷ 15 – (6 × 3) + 10 – (63 ÷ 21) = 17

Option 1: ÷ and +

Option 2: × and –

Option 3: – and +

Option 4: ÷ and ×

Question : Directions: Which two mathematical signs should be interchanged to make the given equation correct?
15 × 3 ÷ 15 – (45 × 3) – 10 + (13 ÷ 2) = 76

Option 1: ÷ and ×

Option 2: × and +

Option 3: × and –

Option 4: ÷ and +

Question : Directions: Which two mathematical signs should be interchanged to make the given equation correct?
(75 + 15) × 27 × 1 – 9 ÷ 7 × (135 + 3) – 10 ÷ (189 + 63) = 434

Option 1: + and ÷

Option 2: + and –

Option 3: × and +

Option 4: ÷ and –

Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation.
86 * (5 * 8 * 4) * 9 * 85

Option 1: –, ×, ÷, +, =

Option 2: +, ×, ÷, –, =

Option 3: +, –, ×, ÷, =

Option 4: ÷, –, ×, +, =

Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs from left to right to balance the following equation.
15 * 5 * 24 * 140 * 7 * 71

Option 1: ÷, +, –, ×, =

Option 2: ×, –, ÷, +, =

Option 3: ×, –, +, ÷, =

Option 4: ×, ÷, +, –, =