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5 Cards in this Set
- Front
- Back
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How would you find a 5% tax on an item? |
1. Turn 5% into 0.05 2. Multiply: 0.05 x Price 3. Add: Answer to the original cost |
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How would you find a 15% tip (using multiplication) |
1. Turn 15% into 0.15 2. Multiply: 0.15 x Price 3. Add: Answer to the original cost |
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How would you find a 15% tip (using mental math) |
1. Find 10% of the cost by moving the decimal 1 time to the left 2. Divide that in half (since 5% is half of 10%) 3. Add the 10% and the 5% together 4. Add that to your original cost |
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Use mental math to find 15% of a $65.00 bill |
10% = $6.50 5% = $3.25 10% + 5% = $9.75 |
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How would you find a 25% discount? |
1. Turn 25% into 0.25 2. Multiply: 0.25 x cost 3. SUBTRACT that answer minus the original cost (the same can be done using mental math) |
