App review by Caryn Lix, Common Sense Education | Updated September 2016
Sushi Monster
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Sushi Monster

Clever addition and multiplication drills for practice, not instruction

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Learning rating
Community rating
Based on 21 reviews
Privacy rating
79%| Warning Expert evaluation by Common Sense
Subjects & Skills
Math, Critical Thinking

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5 images

Pros: Problems are fun and challenging and force students to think quickly.

Cons: Each level moves so fast that students have no time to reflect on incorrect answers.

Bottom Line: Sushi Monster offers free, solid math practice and a clever concept.

Use Sushi Monster in class to improve kids' math fluency and speed in addition and multiplication or as homework assignments for daily practice. Each level (seven for addition, five for multiplication) includes 14 problems. Students can dedicate 10 minutes a day to improving math fluency and have some silly fun in the process.

You won't be able to monitor incorrect answers with the free version, though, so other forms of practice and assessment will need to supplement Sushi Monster. Scholastic offers a full, paid program, of which Sushi Monster is one of 12 practice games, and it does include student accounts and a teacher dashboard. 

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Sushi Monster is a fun and effective way to practice addition and multiplication. Students work in reverse to solve problems. Each round begins with a set of target numbers. The chef puts numbered plates of sushi on the counter, and kids must choose the correct combination of plates to meet the target, thereby feeding the sushi monster. If correct, the monster gobbles up the sushi. If incorrect, the hungry monster is not happy!

Students unlock the next level by hitting at least 12 of the 14 target numbers. Players get all new numbers when replaying a level. There are, of course, multiple ways to reach the target, but if you don't think ahead (all target numbers for the level appear at the top of the screen), you won't have the right numbers to make the later targets.

Colorful, cartoony monsters and great sound effects add to the playful vibe. Outbursts from the monsters are more thrilling than scary and increase the engagement factor.

When students miss a problem, the app doesn't show what they could have done differently to reach a correct answer. Sushi Monster offers a helpful strategy tip for each level to assist frustrated players, but it's easy to miss this option since kids have to pause the game to find it. Players might well get overwhelmed because the difficulty ramps up quite a bit between levels -- sometimes into five-digit numbers. Even as a free app and not part of Houghton Mifflin's full, paid program, Sushi Monster is a fun way for students to build math speed and fluency, as well as some logic and basic problem-solving skills.

Overall Rating


Sushi Monster draws kids in with a silly, fun premise, and the fast-paced math keeps them engaged.


Sushi Monster goes slightly beyond basic memorization and practice by encouraging students to use critical thinking to create strategies that use numbers most effectively.


Though students can pause and get help on problems, there's no instruction or explanation of incorrect answers. 

Common Sense reviewer
Caryn Lix Classroom teacher

Community Rating

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Featured review by
Melissa A. , Classroom teacher
Classroom teacher
none, United States
Great visuals that help students stay engaged while learning addition and multiplication.
Overall, I think that this is a useful app for young students learning addition and multiplication. I do think that it would be great if the app would also include subtraction and division. Another aspect that I liked was how the student can keep working to higher level math sentences.
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Data Safety
How safe is this product?
Users can interact with trusted users.
Users can interact with untrusted users, including strangers and/or adults.
Profile information must be shared for social interactions.
Data Rights
What rights do I have to the data?
Users can create or upload content.
Unclear whether users retain ownership of their data.
Processes to access or review user data are available.
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Personal information is shared for third-party marketing.
Traditional or contextual advertisements are displayed.
Personalised advertising is displayed.

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