Question : Directions: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation. 831 * 3 * 13 * 45 * 245 * 1
Option 1: ÷, +, –, =, ×
Option 2: =, ×, ÷, +, –
Option 3: =, –, ÷, +, –
Option 4: =, ÷, +, –, ×
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Correct Answer: ÷, +, –, =, ×
Solution : Given: 831 * 3 * 13 * 45 * 245 * 1
Replace * with the mathematical signs and solve the equations one by one using the BODMAS. Let's check the given options – First option: ÷, +, –, =, × ⇒ 831 ÷ 3 + 13 – 45 = 245 × 1 Solving the L.H.S. of the equation – = 277 + 13 – 45 = 245 = R.H.S. Second option: =, ×, ÷, +, – ⇒ 831 = 3 × 13 ÷ 45 + 245 – 1 Solving the R.H.S of the equation – = 3 × 13 ÷ 45 + 245 – 1 = 0.86 + 245 – 1 = 831 ≠ 244.86 Third option: =, –, ÷, +, – ⇒ 831 = 3 – 13 ÷ 45 + 245 – 1 Solving the R.H.S. of the equation – = 3 – 0.289 + 244 = 831 ≠ 246.71 Fourth option: =, ÷, +, –, × ⇒ 831 = 3 ÷ 13 + 45 – 245 × 1 Solving the L.H.S. of the equation – = 0.23 + 45 – 245 = 188 ≠ –199.77
So, only the first option satisfies the given equation. Hence, the first option is correct.
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Question : Directions: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation. 52 * 4 * 38 * 5 * 5 * 0
Option 1: ×, ×, +, =, ×
Option 2: ÷, =, –, ×, +
Option 3: ×, +, ÷, =, –
Option 4: ÷, =, –, ÷, ×
Question : Directions: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation. 221 * 17 * 3 * 60 * 7 * 10
Option 1: ÷, –, +, =, ×
Option 2: +, =, ×, ÷, –
Option 3: ÷, ×, +, =, +
Option 4: +, =, ×, +, ×
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 88 * 44 * 22 * 66 * 99 * 251
Option 1: +, ÷, –, ×, =
Option 2: ÷, +, –, ×, =
Option 3: +, +, –, ×, =
Option 4: –, ÷, +, +, =
Question : Directions: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation. 23 * 12 * 36 * 2 * 9 * 285
Option 1: –, =, ×, ×, ÷
Option 2: ×, +, ÷, –, =
Option 3: +, +, =, ×, ×
Option 4: =, +, +, ×, –
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs from left to right to balance the given equation. 44 * 32 * 8 * 16 * 3 * 0
Option 1: +, ×, –, ÷, =
Option 2: ×, +, –, ÷, =
Option 3: +, –, ×, ÷, =
Option 4: +, ÷, –, ×, =
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