Number Sums - Numbers Game

Number Sums - Numbers Game

Math puzzle games for adults

31K ratings
1305 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • September 9, 2023
  • August 19, 2026

Features

Number Sums - Numbers Game video #1 for iPhone
Number Sums - Numbers Game screenshot #2 for iPhone
Number Sums - Numbers Game screenshot #3 for iPhone
Number Sums - Numbers Game screenshot #4 for iPhone
Number Sums - Numbers Game screenshot #5 for iPhone
Number Sums - Numbers Game screenshot #6 for iPhone
Number Sums - Numbers Game screenshot #7 for iPhone
Number Sums - Numbers Game screenshot #8 for iPhone
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ipad
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About

This app offers a challenging number puzzle designed to enhance mental math skills. Players must make the sum of numbers in rows, columns, and colored regions match given clues by circling correct numbers and erasing extras. It provides a fun way to practice arithmetic and logic with various difficulty levels.

Summing numbers in rows and columns
Matching sums to clues
Circling and erasing numbers
Multiple difficulty levels
Board sizes from 3x3 to 10x10
Hint system
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What users say

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What's New in Number Sums

1.14.0

August 19, 2026

- Performance and stability improvements We read all your reviews and always try to make the game better. Please leave us some feedback if you love what we do and feel free to suggest any improvements. Challenge your brain with Number Sums and have fun!

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3

In-App Purchases

$14.99

Number Sums No Ads

Enjoy hours of Number Sums fun without ads

Charts

Top Free

📈 173+7

Board games

This game rose +7 positions in Board games chart.

Last updated on August 30, 2026.

Events

Read more about New Year Party

New Year Party

Celebrate New Year with Number Sums!

Dec 24, 2024 Jan 3, 2025

Read more about Meet the Colored Regions!

Meet the Colored Regions!

Master new levels with bright regions!

Oct 4, 2024 Nov 3, 2024

Read more about Student Life

Student Life

Collect Student Life postcards!

Aug 23, 2024 Sep 2, 2024

User reviews

Great game too many ads to reasonably play

Love the game, which is why it got 2 stars - it would have been a 5 star if there wasn’t an ad after EVERY TIME a move was made.
I spend time doing the math, checking the lines & sections, when I figure out what to save & delete I have to go through an ad between each one of my choices, making me have to redo all my math again before the next move, another ad & do the process again, causing errors & having to start the game again.
Deleting as it causes me more aggression, frustration and anxiety than an enjoyable time.

I understand ads are necessary for developers to be able to keep making content for us, however when it gets to this point, users walk away & no ads are being seen. It’s a lose lose situation
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Unnecessary and needless stress that could be alleviated by a simple GUI redesign.

The GUI adds unnecessary stress to a game that should be relaxing. Every time you press the accept or reject button, you have to double check it. If the erase button is already selected, and you press it again, it toggles to the accept button, and visa versa. The fix is to either not toggle, because it’s NOT a toggle button, or Color code the buttons so it’s easy to see the change. My heart rate should not needlessly go up every time I select a number because to erase or accept because of toggle design of the buttons!
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Fun game but …

Waaaaay too many ads.

Too many ad breaks

The game is interrupted by too many ads.

Make a kids version

My wife and I are addicted to this game! We happily paid the fee to get rid of the annoying ads.

I would love to give this game to my grandkids too. I would love it if the developers could specify the dimensions of the grid, starting at 2x2.

Developer apps

User experience

🐞

Reported Bugs

2 issues

Incorrect number removal function removed

Bug

Ads randomly opening browser pages

Bug

Requested Features

4 requests

Dark mode option

Feature

Separate buttons for circle/erase

Feature

Auto-erase incorrect numbers

Feature

Difficulty/grid size selection

Feature

FAQ

What is Number Sums?

Number Sums is a number puzzle game designed to train your mental math and logic skills. The objective is to make the sum of numbers in each row, column, and colored region equal to the provided clues by strategically circling and erasing numbers.

How do I play Number Sums?

You play by circling the correct numbers that add up to the target values shown on the sides of the board and within regions. Use the toggle to switch between circling and erasing modes to mark the correct and extra numbers. Ensure all rows, columns, and regions sum correctly simultaneously.

Is Number Sums free to play?

The game is free to play and offers various difficulty levels and board sizes. It does include in-app purchases and advertisements, which can be removed or utilized for hints.

What are the benefits of playing Number Sums?

Playing Number Sums helps improve your mental arithmetic and logic skills, which are valuable for everyday life. It offers a challenging yet engaging way to train your brain with a minimalistic design and no time limits.

What devices is Number Sums compatible with?

While specific device compatibility isn't detailed, the app is designed for mobile use and is available on platforms that support mobile applications. It offers a simple design suitable for various screen sizes.