Practice Zero in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
The number representing the absence of quantity; the additive identity and placeholder in positional notation.
Zero is the placeholder that makes '10' different from '1'—it marks empty positions.
Example 1
easyEvaluate: (a) 17 + 0, (b) 17 \times 0, (c) 0 \div 17.
Example 2
mediumWhy is \frac{5}{0} undefined? Explain using the definition of division.
Example 3
easyIs zero even or odd? Justify.
Example 4
mediumThe number 3{,}020 has a zero in the tens place. How does removing that zero (writing 320 instead) change the number's value?