The ability to be at home with large numbers like millions, billions, trillions, and quadrillions, and not just knowing how many zeros they each have.
Being aware that a million has 6 zeros, a billion has 9 zeros, a trillion has 12 zeros, and a quadrillion has 15 zeros is only the first step; we need to try visualizing the difference between them by putting them into context—we need that zero sense to get a feel of what these numbers represent.
by MathPlus August 24, 2021
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