Number Sense Blog


    Word Problem Wednesday: Parties, Balloons, and Elementary Math Skills

    By Mathnasium | Added Aug 8, 2018

     Use elementary math skills such as addition and subtraction to figure out the number of party balloons Emily originally had based on how many blew away in the wind in this word problem challenge.

    Did you know that helium balloons have been used on other planets? That’s right! The Russian space probes Vega 1 and Vega 2 used helium balloons to drop scientific instruments into the atmosphere of Venus in 1985. We think of balloons as pretty party favors, but they’re actually pretty amazing things!
    This week’s word problem challenge asks you to figure out the number of party balloons Emily originally had based on how many blew away in the wind. You’ll need foundational elementary skills such as addition and subtraction to solve this one. Let’s get started!

    Question: Emily was bringing balloons to a party, but a gust of wind blew 11 of them away. If she has 18 balloons left, how many balloons did she start with?

    Take your time solving this on your own. When you're ready, look below to check your solution against ours.

     

    Solution: If Eddie posts 3 photos per day for 5 days, then he posts 3 × 5 = 15 photos. In order for Eddie’s average to be 5 photos per day for a week, he’ll need to post a total of 5 × 7 = 35 photos. So, he needs to post 35 – 15 = 20 more photos over the weekend to bring his average to 5 photos per day.

     

     

     

    Find Your Local Mathnasium

        

    Subscribe to Email Updates


    search

    Authors



    Before I came to Mathnasium, I could sum up everything I felt about math in one word: 'EVIL!' I hated math. ... Mathnasium has been my safe haven. They truly have shown me the light when it came to addressing my fear and provided me with the tools that I need to rebuild my prior knowledge so that I won't forget it. Math is no longer a subject I shy away from but it is a subject I can boldly accept and understand.

    Roxanne, 12th grade

    girl_backpack.jpg