Ten free 8th grade word problems about music, with an answer key. Type your kid's first name and every problem is about them; press "New problems" for a fresh sheet as often as you like.
This sheet mixes two-step equations, proportions, percent increase and decrease, simple interest, adding and subtracting integers, and mean (average) (8th-grade equation solving plus 7th-grade review). Each problem is built from a checked math template, so the numbers change every time but the answers are always right; only the story is about music.
Print it, or let your kid work it on screen and check each answer as they go. No sign-up, and the name you type stays on your device.
✦ Mathbloom · free worksheet
Music Math
8th Grade · Two-step equations · Proportions · Percent increase and decrease · Simple interest · Adding and subtracting integers · Mean (average)
Name Date
Sam has $12 saved toward a new guitar. After adding the same amount each week for 9 weeks, Sam has $66. Solve 9x+12=66 to find x, the number of dollars added each week.
A.x=8.67
B.x=7.33
C.x=54
D.x=6
Sam programs drum beats and hand claps in a ratio of 4:9 in a beat maker. How many drum beats go with 18 hand claps?
Answer:
Last month, Sam had 80 songs on a playlist. Now Sam has 120. What is the percent increase?
A. 50%
B. 33.33%
C. 40%
D. 25%
Sam's band raised $600 at a concert and put it in a savings account that pays 1% simple interest per year. How much interest will it earn in 1 year?
Answer:
Sam keeps track of how far a melody moves in pitch: -7 semitones in the first phrase and +14 semitones in the second phrase. What is the total change, in semitones?
Answer:
Over five shows, Sam played this many songs: 7, 7, 9, 3, 4. Find the mean (the average) number of songs per show.
Answer:
Sam has $10 saved toward a new guitar. After adding the same amount each week for 6 weeks, Sam has $22. Solve 6x+10=22 to find x, the number of dollars added each week.
A.x=5.33
B.x=3.67
C.x=2
D.x=12
Sam programs drum beats and hand claps in a ratio of 6:3 in a beat maker. How many drum beats go with 39 hand claps?
Answer:
Last month, 20 people came to the band's show. This month, Sam counted 25. What is the percent increase?
A. 20%
B. 25%
C. 5%
D. 12.5%
Sam's band raised $600 at a concert and put it in a savings account that pays 1% simple interest per year. How much interest will it earn in 5 years?
Answer:
The key always prints on its own page.
Answer key
Music Math · 8th Grade
D. x=6Undothe+12first(subtractfrombothsides),thenundothe×9(dividebothsides):x=6.
8Cross-multiply:4×18=72,thendivideby9:x=8.
A. 50%Percentchange=(change÷original)×100=(40÷80)×100=50%.
6.00600×0.01×1=$6.00.
7-7+14=7.
67+7+9+3+4=30,and30÷5=6.
C. x=2Undothe+10first(subtractfrombothsides),thenundothe×6(dividebothsides):x=2.
78Cross-multiply:6×39=234,thendivideby3:x=78.
B. 25%Percentchange=(change÷original)×100=(5÷20)×100=25%.
30.00600×0.01×5=$30.00.
Want a whole course built around your kid's music?
Mathbloom writes interactive lessons around what a kid loves, on their grade's real standards. Try the first music lesson for 8th grade free, no sign-up.
Questions parents ask
Are these worksheets really free?
Yes. Make, print, and play as many sheets as you like, no account and no card.
Is there an answer key?
Yes. It prints on its own page after the problems, and each answer comes with a short explanation.
Can I put my kid's name in the problems?
Yes. Type a first name and every problem uses it. The name is only used on this page in your browser; it is not sent anywhere or saved.
What does the 8th grade sheet cover?
Two-step equations, Proportions, Percent increase and decrease, Simple interest, Adding and subtracting integers, and Mean (average), a mix of 8th-grade equation solving and 7th-grade review. You can also pick a single topic for a focused sheet.
Can my kid do it on screen instead of paper?
Yes. "Play on screen" lets them answer each problem and see right away whether it is right, with a hint when it is not.
Is there more than worksheets?
Mathbloom builds whole interactive courses around what a kid loves. You can try a free music lesson for 8th grade with no sign-up.