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: ÷, –, ×, +, =
Correct Answer: –, ×, ÷, +, =
Solution : Given: 86 * (5 * 8 * 4) * 9 * 85
Let's check each option – First Option: –, ×, ÷, +, = 86 – (5 × 8 ÷ 4) + 9 = 85 L.H.S. = 86 – (5 × 2) + 9 = 86 – 10 + 9 = 85 Second Option: +, ×, ÷, –, = 86 + (5 × 8 ÷ 4) – 9 = 85 L.H.S. = 86 + (5 × 2) – 9 = 86 + 10 – 9 = 87 ≠ 85 Third Option: +, –, ×, ÷, = 86 + (5 – 8 × 4) ÷ 9 = 85 L.H.S. = 86 + (5 – 32) ÷ 9 = 86 – 27 ÷ 9 = 86 – 3 = 83 ≠ 85 Fourth Option: ÷, –, ×, +, = 86 ÷ (5 – 8 × 4) + 9 = 85 L.H.S. = 86 ÷ ( 5 – 32) + 9 = 86 ÷ (–27) + 9 = 5.815 ≠ 85
So, only the first option satisfies the equation. Hence, the first option is correct.
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Question : Directions: Select the correct combination of mathematical signs to replace × signs and to balance the following equation. 5 × 9 × 3 × 6 × 8
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. 16 * 35 * 5 * 20 * 4 * 89
Option 1: ×, –, +, ÷, =
Option 2: –, ÷, +, ×, =
Option 3: ×, ÷, +, –, =
Option 4: –, ×, ÷, +, =
Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation. (9 * 8 * 7) * 13 * 5
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: ×, ÷, +, –, =
Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs from left to right to balance the following equation. 24 * 12 * 35 * 24 * 6 * 319
Option 1: +, –, ÷, ×, =
Option 2: ×, +, –, ÷, =
Option 3: ÷, +, –, ×, =
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