Skills · Ratios & Proportions · Percents
Commission, simple interest, percent error
Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.
Problem types
- a commission: 5% commission on $400 in sales
- simple interest: $500 at 4% simple interest for 3 years
- base pay plus commission: $300 plus 5% of $2,000 in sales
- percent error: a guess of 45 when the actual is 50
- the balance with simple interest: $500 at 4% for 3 years: balance
Sample Sheet · Level 1
- $400 at 10% simple interest for 1 year: interest =
- 5% commission on $600 in sales =
- 10% commission on $900 in sales =
- $200 at 10% simple interest for 3 years: interest =
- 5% commission on $100 in sales =
- $800 at 2% simple interest for 3 years: interest =
- $700 at 5% simple interest for 1 year: interest =
- 10% commission on $100 in sales =
Answer key
- $40.00
- $30.00
- $90.00
- $60.00
- $5.00
- $48.00
- $35.00
- $10.00
Sample Sheet · Level 3
- 3% commission on $16,470 in sales =
- $5,300 at 8% simple interest for 2 years: interest =
- $6,250 at 7% simple interest for 10 years: interest =
- 8% commission on $9,970 in sales =
- $300 plus 2% of $17,330 in sales: pay =
- guess 138, actual 150: percent error =
- $3,450 at 5% simple interest for 2 years: balance =
- guess 156, actual 130: percent error =
Answer key
- $494.10
- $848.00
- $4,375.00
- $797.60
- $646.60
- 8%
- $3,795.00
- 20%
Make your own
Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.