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Robert
Robert asked in Science & MathematicsMathematics · 3 months ago

How to get a calculator to add up 2 × 4 + 2 × 4 ?

I'm trying to do something like I have .34 item x 12 and .56 items times 20 and just want to be able to do .56 x 12 + .56 x 20 without getting 92.8 the answer I want is 15.28 

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  • Wayne DeguMan
    Lv 7
    3 months ago
    Favorite Answer

    I assume you wish to calculate 0.34 x 12 + 0.56 x 20

    If you type this into a calculator, it will observe order of operations

    i.e. (0.34 x 12) + (0.56 x 20)

    so, 4.08 + 11.2 => 15.28

    If you press the equals sign after each calculation you will get:

    [(0.34 x 12) + 0.56] x 20

    i.e. [4.08 + 0.56] x 20

    so, 4.64 x 20 = 92.8

    Hence, type the original expression into the machine and don't press the equals sign until the end

    i.e. type this: 0.34 x 12 + 0.56 x 20 =

    Note: If you use brackets you will get the same answer

    i.e. (0.34 x 12) + (0.56 x 20) =

    :)>

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