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Which two signs should be interchanged to make the given equation correct?
8 × 4 − 7 + 8 ÷ 2 = 35
+ and −
÷ and −
− and ×
× and ÷
Let's look at each option to see how swapping the signs affects the equation:
- Option 1: + and -
- Changing these signs makes the equation: 8 × 4 + 7 - 8 ÷ 2.
- Calculate: 32 + 7 - 4 = 35.
- This does make the equation true.
- Option 2: ÷ and -
- Changing these signs results in: 8 × 4 ÷ 7 + 8 - 2.
- Calculate: 32 / 7 + 8 - 2 = 10.57.
- This is not equal to 35.
- Option 3: - and ×
- Equation becomes: 8 - 4 - 7 + 8 ÷ 2.
- Calculate: 4 - 7 + 4 = 1.
- This does not equal 35.
- Option 4: × and ÷
- Leads to: 8 ÷ 4 - 7 + 8 × 2.
- Calculate: 2 - 7 + 16 = 11.
- Correct Answer: Option 1: + and -
By: santosh ProfileResourcesReport error
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