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#subtraction — Public Fediverse posts

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  1. I admire your intention but I definitely disagree your method will prove effective. That is a #GOP method. #Subtraction. It's never worked. When enough good gets done, there won't be time or energy or anything for too much bad. Eliminating a bad is not creating a good. #MissKitty is about creation.

    RE: https://bsky.app/profile/did:plc:4wl7zysp7lqiwmaehzyktwk5/post/3mstt3plabs2f

  2. Math Game Monday: Bowling

    This game builds calculations skills and helps develop fluency.

    Many parents remember struggling to learn math. We hope to provide a better experience for our children. And one of the best ways for children to enjoy learning is through hands-on play.

    So what are you waiting for? Let’s play some math!

    Bowling

    Math Concepts: addition, subtraction, multistep calculation, column addition (for final score).

    Players: any number.

    Equipment: one deck of math cards, game board, ten tokens for covering numbers, pencil or pen, and (optional) scratch paper for adding up the scores.

    Set-Up

    You can print the bowling game board and score sheet from the Number Game Printables Pack, or draw your own game board and use the printable score sheets from the Apollo’s Templates website.

    Bowling game board and score sheet.

    The 23-page printable (pdf) Number Game Printables Pack file includes hundred charts, graph paper, and game boards from the first two Math You Can Play books.

    How to Play

    Place the deck face down where all players can reach. When it’s your turn, roll your bowling ball by flipping up three cards. On your game board, cover the pins you knock down:

    • The numbers on your cards.
    • Any numbers you can make by adding or subtracting two cards.
    • Any numbers you can make by adding and subtracting with all three of the cards. Each card may be used only once in each calculation.

    For example, if you roll a two, four, and ace, you can cover those numbers and also:

    • 3 = 4 − 1
    • 7 = 1 + 2 + 4
    • What else can you find?

    If you cover all the numbers, you rolled a strike, and that’s the end of your turn. If you don’t cover all the numbers, discard those cards and turn up three more for your next ball. Can you cover the remaining numbers now? If so, that’s a spare.

    Your score for each turn is how many numbers you cover, with special rules for strikes and spares as explained below.

    After you roll two balls, the next player takes a turn. Keep going until each player has ten turns. If the draw pile runs out of cards, reshuffle the discards to replenish it.

    How to Use the Score Sheet

    The rules for keeping score in bowling seem confusing until you’ve played a few games. Each larger square box on the score sheet is called a frame and represents your score for one turn. The two (or three) smaller square boxes are for keeping track of each time you roll your ball.

    One complete game of bowling consists of ten turns, with a maximum score of 300 points. You might think that with ten numbers to cover in each turn, the most you could score would be 100 points, but strikes and spares get bonuses.

    For each turn, write down how many numbers you covered with your first ball in the first small box, or if you got a strike, mark an X there. If you threw a second ball, mark down how many more numbers you covered in the second small box, or if you got a spare, write a slash (/). If you did not get a strike or spare, add the numbers you wrote down and put that total score at the bottom of the frame.

    A spare earns one bonus ball, and a strike earns two, which means you can’t finish scoring your frame yet. On your next turn, the balls you throw will count not only for their own frame but also as bonus points on your strike or spare. After you’ve thrown your next ball (or two balls, for a strike), add ten for the strike or spare plus the value of the bonus(es) and write in that total at the bottom of the unfinished frame.

    Notice that the bonus balls get counted twice, once as part of the strike or spare and once for their own frame. And if you throw three strikes in a row, the third one will be counted three times:

    • As the second bonus throw in the first strike frame.
    • As the first bonus throw on the second strike.
    • And finally as part of its own frame, along with its own bonus balls.

    When you get to the last frame, you will see three small boxes. That’s because any players lucky enough to throw a strike or a spare still get their bonus balls. If you don’t get a strike or spare, ignore that third little box.

    Finally, add up all the points from all ten frames to make your total score for the game.

     
    * * *

    This game is an excerpt from Math You Can Play Combo: Number Games for Young Learners. Discover more of my books, printable activities, and cool mathy merchandise at Denise Gaskins’ Playful Math Store.

    Special Offer: Would you like to access a growing archive of Math Monday games and other activity ideas as convenient printable pdf downloads, ready to print and play with your kids? Join me on Patreon or choose the paid subscription on Substack for mathy inspiration, tips, printable activities, and more.

    “Math Game Monday: Bowling” copyright © 2026 by Denise Gaskins.

    #Addition #ElementarySchool #Games #MathGameMonday #Subtraction
  3. The Subtraction Economy

    How they take more, give you less, and train you not to notice. Pour two fingers of the vodka you trusted ten years ago and you taste grain, cold, and a clean burn that meant something had been distilled with care. Pour the same brand today and you get water and a faint chemical ghost of that promise. The bottle looks identical and the price has climbed, while the liquid inside has been quietly reformulated down toward rotgut. A label held constant over a swapped recipe is the entire con, and the house is betting you will never run a blind taste test against a memory, because memory fades while the bottle on the shelf looks just like the one you loved. […]

    bolesblogs.com/2026/07/18/the-

  4. Another fun #PostProcess challenge based on a photo by @[email protected], this one using #Subtraction. In honor of this week's #AlphabetChallenge #WeekRForReflections, I focused my edits on highlighting the street reflections in the foreground. Notes in alt text. #PhotographersOfBluesky #ECK

  5. "Success will often depend on what you choose to ignore.” - Futurist Jim Carroll

    --
    Futurist Jim Carroll is writing a series, The Art of the Infinite Pivot, based on 36 lessons from his 36 years as a solo entrepreneur, working as a nomadic worker in the global freelance economy. The series is unfolding here, and at pivot.jimcarroll.com.
    --

    If you follow me, you will know I'm very big on not following big hype. Far too many trends are overplayed and overemphasized, and yet under-reach with unrealistic potential.

    Why is that? Because I've seen over and over and over again what happens when excessively hyped trends don't become real in the short term. But here's a fun fact - I also believe the observation by Bill Gates that we tend to overestimate the impact of a trend in the short term, but underestimate it's impact its impact in the long term.

    Which means timing is everything!

    So let's put this conundrum into perspective. Many of us are conditioned to believe that success is about absorption. More information, more networking, more trends, more hustle leads to more success - that type of thing. But my own voyage through the global economy has taught me that the opposite is true. As the world gets louder, your success doesn't depend on what you take in. It depends on what you ruthlessly exclude.

    The "Infinite Pivot" isn't just about moving toward the new; it's about knowing which 'new' to avoid, and when.

    Fast-moving trends can often be a powerful distraction. The buzz they generate It is a chaotic mix of breaking news, viral hype, and the promise of quick riches. But if you jump on too soon, you'll get burned. Too late, and you'll miss the opportunity. Did I mention timing is everything?

    There's also the aspect of how real any particular trend might be - and which should be ignored. The most profound shifts in my career happened when I finally built a "cognitive firewall" against trivial trends.

    In an era of infinite distraction, the person who can choose what not to care about is the only one who can truly see what's coming.

    Don't just filter the future.

    Manage your attention.

    ---
    Futurist Jim Carroll has developed a well-honed skill for discovering and managing hype.

    **#Ignore** **#Focus** **#Hype** **#Timing** **#Subtraction** **#Clarity** **#Distraction** **#Noise** **#FOMO** **#Trends** **#Attention** **#Filter** **#Pivot** **#Freelance** **#Lessons** **#Consensus** **#Quiet** **#Opportunity** **#Strategic** **#Ruthless** **#Exclusion** **#Signal** **#Gates** **#Wisdom** **#Onwards**

    Original post: jimcarroll.com/2026/04/decodin

  6. "To move fast, you don't need more gas. You need less drag." - Futurist Jim Carroll

    ---
    Futurist Jim Carroll is writing his end-of-2025 / introduction-to-2026 series, 26 Principles for 2026. You can follow along at 2026.jimcarroll.com. He welcomes your comments.
    ---

    Get rid of the anchors that are keeping you back. The weights that are holding you down. The chains that bind you to yesterday. The barriers that block your way.

    And the things that are slowing you down.

    We are on Day 11. You've committed to connecting externally for speed (Day 10). Now you must look inside and confront the greatest enemy of internal velocity: complexity.

    Your future depends on the idea of Radical Subtraction. It might not make sense, but to move faster in our exponential world, you need to stop adding things and take things away.

    In our old, slow, linear world, we solved problems by adding. If there was a risk, we added a compliance step. If there was miscommunication, we added a meeting to fix it. If there was a new opportunity, we added a committee. If there were a disruption, we would develop a strategy to deal with it. Over time, this addition was seen as sophistication and control.

    We added things to try to deal with the complexity the world was throwing at us.

    But here's the thing - in an exponential world, this accumulated complexity is organizational cholesterol. It clogs the arteries of decision-making. Every extra approval layer, every redundant report, and every "alignment meeting" slows down your Execution Velocity (Day 8) and makes it impossible to achieve a Moonshot (Day 9).

    I've long talked about this from the stage as the accumulation of 'organizational sclerosis.'

    youtube.com/watch?v=zVgslECVwK

    It's clogging up your future, slowing you down, killing your initiative. What is it? It's the condition where your arteries of creativity and initiative become clogged because everyone keeps doing things - even though no one remembers why they are doing them. It’s not just annoying; it’s a health hazard for your business that blocks the flow of new ideas.

    And here's the thing - you cannot add your way to agility. When the world speeds up, your internal systems must simplify.

    Here's why...

    ----
    Futurist Jim Carroll has long been intensely frustrated with bureaucracy and organizational sclerosis - with that, perhaps, being the reason why he has worked as a solo entrepreneur for 35 years!

    **#Velocity** **#Subtraction** **#Simplicity** **#Agility** **#Speed** **#Focus** **#Innovation** **#Leadership** **#Future** **#Execution**
    ****
    Original post: jimcarroll.com/2025/12/decodin

  7. I Don’t Try to Be Clear. I Remove What’s Not Me.
    Clarity isn’t added. It’s revealed.

    I cut. I simplify. I subtract. Until only essence remains. That’s my creative process — and my life.

    #clarity #essence #design #subtraction #philosophy
    bereznev.gumroad.com/l/insider
    P.S. Made by a madman — Kirill Bereznev
    bereznev.gumroad.com/l/insider

  8. Watch "How To Use An Abacus" on YouTube

    youtu.be/SYRyKYmOJwM

    > Learn how to use an abacus to add, subtract, multiply, and divide. In this video, Eddy takes a small detour from helping you build a business to learning ho...
    #math #abacus #addition #subtraction #multiplication #division

  9. @davidradcliffe

    Thanks. At first I was amused but now glad you made me think.

    I hate #PENDMAS because it is misleading.

    There are three #arithmetic #operations: #additions, #multiplications and #powers. They are #geometric expansions similar to a #line to a #square to a #cube.

    The other three: #subtraction, #division, and #roots are no different than the above except in #direction. They are geometric #reductions.

    To truly understand one you must understand the other.