Math worksheet designed to teach students how to calculate sales tax using percentages, featuring examples, practice problems, and challenge questions.

Let’s solve this step by step.

We are told the sales tax rate is 7%.
To find the sales tax amount, we multiply the item price by 0.07 (because 7% = 7/100 = 0.07).
Then we round to the nearest penny (nearest hundredth of a dollar).

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Row 1: You spent $8.75

Sales Tax = 8.75 × 0.07
= 0.6125 → Round to nearest cent → $0.61

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Row 2: You spent $7.49

Sales Tax = 7.49 × 0.07
= 0.5243 → Round to nearest cent → $0.52

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Row 3: You spent $6.05

Sales Tax = 6.05 × 0.07
= 0.4235 → Round to nearest cent → $0.42

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Row 4: You spent $18.88

Sales Tax = 18.88 × 0.07
= 1.3216 → Round to nearest cent → $1.32

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Row 5: You spent $3.06

Sales Tax = 3.06 × 0.07
= 0.2142 → Round to nearest cent → $0.21

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Row 6: You spent $14.21

Sales Tax = 14.21 × 0.07
= 0.9947 → Round to nearest cent → $0.99

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Row 7: You spent $1.50

Sales Tax = 1.50 × 0.07
= 0.105 → Round to nearest cent → $0.11 *(since 0.105 rounds up)*

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Row 8: You spent $10.25

Sales Tax = 10.25 × 0.07
= 0.7175 → Round to nearest cent → $0.72

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Row 9: You spent $5.01

Sales Tax = 5.01 × 0.07
= 0.3507 → Round to nearest cent → $0.35

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Row 10: You spent $11.49

Sales Tax = 11.49 × 0.07
= 0.8043 → Round to nearest cent → $0.80

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Row 11: You spent $2.70

Sales Tax = 2.70 × 0.07
= 0.189 → Round to nearest cent → $0.19

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Row 12: You spent $7.54

Sales Tax = 7.54 × 0.07
= 0.5278 → Round to nearest cent → $0.53

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Now let’s do the Challenge Problems:

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Challenge Problem 1:

You spent $150. Sales tax rate is 7%. How much did you spend with tax?

Step 1: Find tax amount
Tax = 150 × 0.07 = $10.50

Step 2: Add tax to original amount
Total = 150 + 10.50 = $160.50

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Challenge Problem 2:

You spent $106. Sales tax rate is 7%. How much did you spend with tax?

Step 1: Find tax amount
Tax = 106 × 0.07 = $7.42

Step 2: Add tax to original amount
Total = 106 + 7.42 = $113.42

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Final Answer:

Row 1: $0.61
Row 2: $0.52
Row 3: $0.42
Row 4: $1.32
Row 5: $0.21
Row 6: $0.99
Row 7: $0.11
Row 8: $0.72
Row 9: $0.35
Row 10: $0.80
Row 11: $0.19
Row 12: $0.53

Challenge 1 Total Amount Spent: $160.50
Challenge 2 Total Amount Spent: $113.42